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... Science Frontiers ONLINE No. 78: Nov-Dec 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fossil Identity Still Up In The Air In 1986, we reported the discovery of bird-like fossils in Texas by S. Chatterjee, a paleontologist at Texas Technical University. Chatterjee was so certain that the fossils (two specimens exist) were primitive birds that he named the species Protoavis texensis (first bird from Texas). During the past five years, the scientific community has chafed while Chatterjee studied his finds and wrote them up. It seems that many paleontologists do not think that Proto-avis is really a bird at all, and Chatter jee has been slow in releasing details. But now his first paper has appeared in the Philosophical Transactions of the Royal Society . Result: Many doubts still remain about the status of Protoavis. A. Feduccia: "Calling this the original bird is irresponsible." (1 ) J.H . Ostrom: "Sad to say, for all its length, little support for the claim is to be found in this paper." (2 ) J. Gauthier: While some of the bones appear bird-like, they also look dinosaurian and could represent a new type of theropod dinosaur. (3 ) For his part, Chjatterjee asserts that Protoavis' skull has 23 features that are fundamentally bird-like, as are the forelimbs, the shoulders, and the hip girdle. "His reconstruction also shows a flexible neck, large brain, binocular vision, and, ...
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... Science Frontiers ONLINE No. 66: Nov-Dec 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Bird That Smells Like Cow Manure Pity the poor hoatzin. This "extremely primitive" bird is usually described as being just a step beyond the reptiles. The hoatzin clambers around the jungle foliage using functional claws on its wings. This certainly sounds "primitive." Then, we have that awful smell! A hoatzin feeds its chick a regurgitated mush of partially digested leaves. But perhaps we have been wrong about the hoatzin. It's all just bad press. A. Grajal et al have just discovered that this South American bird utilizes foregut fermentation in digesting its diet of leaves. In fact, the hoatzin is the only bird that has evolved this useful capability. Cows, sloths, and a few other mammals and marsupials evolved foregut fermentation. It is hardly a primitive development! Aside from the smell of fermenting vegetable matter, the hoatzin is a rather remarkable animal - more advanced and well-adapted to its environment than previously thought. Grajal et al remark on all the advantages that foregut fermentation confer on the hoatzin and how remarkable it is that this digestive process can be accomplished in such a small volume (cows have huge stomachs). How did the hoatzin hit upon this mechanism before the mammals did? Why didn't other birds "adopt" it? Grajal et al speculate about this hoatzin advance: "Their highly specialized digestive strategy may have arisen from an ancestral nonobligate folivore because of an evolutionary ...
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... Science Frontiers ONLINE No. 28: Jul-Aug 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Memory in food-hoarding birds Birds are not popularly thought to possess superlative memories, but the behavior of food-hoarding birds proves this is untrue. Several species of birds gather huge quantities of food when it is abundant and cache it for later use. On the surface this trait does not seem remarkable, but a look at the numbers of caches involved belies this superficial evaluation, especially to a species who forgot where he put the car keys a few hours ago. Take Clark's nutcracker as an ex-ample. A bird of the U.S . Southwest, Clark's nutcracker harvests conifer seeds when in season and buries them for future use during the rest of the year. One bird may bury as many as 33,000 seeds in thousands of caches, 4-5 seeds per cache. Its memory guides it back to those caches during the next year. (Shettleworth, Sara J.; "Memory in Food-Hoarding Birds,; Scientific American, 248:102, March 1983.) Comment. Such capabilities should not be filed away under "Isn't nature wonderful?" or "Gee whiz!" The import of these special characteristics is suggested in a quote from the article: ". .. certain species have adaptive specializations that make them particularly good at learning and remembering things it is important for them to know." From Science Frontiers #28, JUL ...
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... Science Frontiers ONLINE No. 55: Jan-Feb 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Migrating Birds Collide With Magnetic Bump Do birds utilize the earth's magnetic field for navigation? Many have so surmised; and there exists anecdotal evidence for it. A Swedish ecologist, T. Almberstam, decided to attempt scientific observations. At Norberg, in central Sweden, a huge deposit of magnetite creates a powerful magnetic anomaly. The deposit is 12 kilometers long by several wide. At low altitudes, the total magnetic intensity of the earth's field is 60% higher than normal. What happens when migrating birds fly into this magnetic bump? "Although Almerstam found that many migrating birds showed no signs of avoiding the Norberg anomaly, and often managed to keep on the right course as they passed through it, there were definite indications that the birds' orientation might be affected under special circumstances. Some migrants flying at low altitudes, where the magnetic intensity was greatest and the inclination and declination distorted greatly, became disoriented briefly. They nervously landed and then circled around before taking off again. Other birds changed their altitude abruptly, dropping 100 metres in two minutes and breaking up their flock formations." Certainly something is happening, but no one knows what. (Anonmous; "Magnetic Anomaly Upsets Migrating Birds," New Scientist, p. 32, November 5, 1987.) From Science Frontiers #55, JAN-FEB 1988 . 1988-2000 William R. Corliss ...
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... reports * Bizarre biology * Anomalous archaeology From New Scientist, Nature, Scientific American, etc Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics Catalog of Anomalies (Subjects)Overview Astronomy Biology Chemistry/Physics Geology Geophysics Logic/mathemitics Archeology Psychology Miscellaneous phenomena Other pages Home Page Science Frontiers Online Science Frontiers: The Book Sourcebook Project B BIOLOGY Catalog of Anomalies (Biology Subjects)Within each of these fields, catalog sections that are already in print are given alphanumerical labels. For example, BHB1 = B (Biology)+ H (Humans)+ B (Behavior)+ 1 (first anomaly in Chapter BHB). Some anomalies and curiosities that are listed below have not yet been cataloged and published in catalog format. These do not have the alphanumerical labels. BA ARTHROPODS Titles not yet posted BB BIRDS BBA EXTERNAL APPEARANCE AND MORPHOLOGY BBA1 Avian Asymmetries BBA2 Female Hawks Larger Than Males BBA3 Skewed Sex Ratios of Offspring BBA4 Vividly Colored and Highly Patterned Avian Plumages and Ornaments BBA5 Plumage Polymorphism BBA6 Females with Male Plumage BBA7 Molting before Hatching BBA8 Unusual Diversification and Conservation in Plumage BBA9 Complexity and Sophistication of Feathers BBA10 Complexity and Sophistication of Feather Color-and-Pattern-Generation Mechanisms BBA11 Unusual Plumage-Color Changes BBA12 Feather Curiosities BBA13 Neoteny in Feathers BBA14 Tooth Substitutes in Modern Birds BBA15 Birds Lacking Egg Teeth BBA16 Extreme Sexual Dimorphism in Bills BBA17 Bill Polymorphisms BBA18 Avian Bills: Unusual Adaptations BBA19 Wing Claws BBA20 Wing Spurs BBA21 The Alula or Bastard Wing BBA22 Some Curiosities of Avian Feet BBA23 Inherited Callosities BBA24 Unusual Pouches on Birds BBA25 Luminous Birds BBA26 Odoriferous Birds BBA27 Egg Complexity and Sophistication BBA28 Bird Eggs: ...
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... Science Frontiers ONLINE No. 57: May-Jun 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mysterious Bird Deaths "An eight-year study by Indian zoologists has failed to establish why birds commit suicide year after year at the small village of Jatinga in the northeastern state of Assam. "Attracted by the lights, birds converge on Jatinga at night and on landing become immobile, stop feeding and starve. They neither resist capture nor try to fly away." The mysterious phenomenon dates back to 1905. It peaks in September and October, as the monsoon season wanes, with as many as 500 birds, from some 36 species, dying each night. The birds alight at the same spot each year -- a one-kilometer stretch in the town. No one can account for the selection of this precise spot or for the dazed condition of the birds. (Jayaraman, K.S .; "Mystery of Bird Deaths in Assam," Nature, 331:556, 1988.) From Science Frontiers #57, MAY-JUN 1988 . 1988-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 87: May-Jun 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Fossil Feathers Fly A. Feduccia's cartoon of the bug-catching phase of bird evolution Our alliterative title is apt on two counts: (1 ) Recent research on the famous Archaeopteryx fossils suggest that this animal could indeed fly and was arboreal rather than terrestrial; and (2 ) The paleontologists and ornithologists are still fighting (sometimes emotionally) over how Archaeopteryx fossils should be interpreted. The scientific acrimony centers on whether this ancient bird really evolved from small theropod dinosaurs. Prevailing theory has it that these dinosaurs first evolved feathers to keep warm and then used their feathered "arms" to help capture insects, and so on, with some aimless flapping, to the attainment of true flight. A rival, officially frownedupon theory has it that birds evolved from tree-dwelling reptiles that evolved feathers to break their falls while jumping from branch to branch! [Somehow, neither theory strikes a realistic chord. Why couldn't feathers have evolved solely for the purpose of flight? Answer: because evolutionists cannot countenance purpose in nature. WRC] One reconstruction of Archaeopteryx. There is a remarkable superficial resemblance to the living South American hoatzin. Young hoatzin even sport claws on their wings. Anyway, the latest fusillade in the Archaeopteryx wars was fired by A. Feduccia in Science. Feduccia demonstrated that the claws of Archaeopteryx are sharp and curved like those of modern arboreal birds and quite unlike either terrestrial birds or theropod dinosaurs. In ...
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... Science Frontiers ONLINE No. 133: JAN-FEB 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Ubiquitous Bird-and-fish Motif Pre-Columbiana, a new journal, promote the popular but "out-on-the-fringe" theory that all our planet's oceans were crossed repeatedly before Columbus (an the Vikings, too). One type of evidence adduced to prove such Precolumbian cultural diffusion is the widespread appearance of motifs that are so specific and unusual that one is forced to admit that independent invention seems very unlikely. In the latest issue of Pre-Columbiana, G. Farley has collected examples of the singular "bird-and-fish" motif from Asia, Africa, both Americas, and the Middle East. As you can see from the illustrations, the similarities are striking, and the bird-fish "contact" highly specific. Bird-and-fish motifs. Clockwise from upper left: Mimbres culture, New Mexico; ancient Egyptian hieroglyph; Chimu culture, Peru; ancient China. (Farley, Gloria; "World-Wide Occurrence of a Bird-and-Fish Motif," Pre-Columbiana, 1:187, 1999.) Comment. Yes, we do know that the birds involved are all fish-eaters, but the "kisses" seem more symbolic than pre-consumption. Also, the fish portrayed are often too big to swallow. From Science Frontiers #133, JAN-FEB 2001 . 2001 William R. Corliss Other Sites of ...
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... Science Frontiers ONLINE No. 10: Spring 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why Birds Are Pretty Darwin believed that many male birds are brightly colored because females prefer flashy finery and thus put evolutionary pressure on the development of these characteristics. A large-scale study by Baker and Parker indicates that Darwin erred and that the evolutionary pressure comes instead from predators avoiding brightly colored targets. Instinct tells the predators -- incorrectly in many cases -- that colorful prey taste bad or are noxious. The remarkable (possibly strange) aspect of bird coloration is the incredi ble external similarity of unrelated birds occupying similar habitats. Example, the American Eastern Meadowlark (left) closely resembles the African Yellowthroated Longclaw (right). (Krebs, John R.; "Bird Colours," Nature, 282:14, 1979.) Comment. Two questions cannot be repressed: How do the genes orchestrate this amazing convergence in response to environmental factors? Why was evolution not equally clever in equipping predators with countermeasures to see through these ruses? From Science Frontiers #10, Spring 1980 . 1980-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 93: May-Jun 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cold-blooded birds?Zoologists have been taking it for granted that birds evolved from warm-blooded, active dinosaurs. They may now have to redraw that part of the avian family tree, because the microscopic structure of the leg bones of two species of long-extinct birds suggest otherwise. "Cross sections of the bones of these birds, which lived during the time of the dinosaurs, reveal growth rings -- concentric rings where normal bone growth was interrupted, possibly because of seasonal temperature changes. No such rings are found in the bones of modern birds, which maintain their body temperatures metabolically even in cold weather. But growth rings are found in such reptiles as crocodiles, which cannot maintain their temperatures metabolically, and in some fossil dinosaurs." (Browne, Malcolm W.; "Study May Shake Birds Down from the Dinosaur Tree," New York Times, March 17, 1994. Cr. J. Covey.) From Science Frontiers #93, MAY-JUN 1994 . 1994-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Do birds use genetic maps during migration?Routes taken by migrating German and Austrian blackcaps en route to Africa. Hybrids bisect these initial paths and would end up in the Alps. Many young birds migrate successfully without help from older birds who have made the trip before. The implication is that migration instructions, perhaps even some sort of map of astronomical or geo graphical references, are somehow written upon the genes inherited from their parents. Just how maps can be coded into gene structure is anyone's guess. (In fact, since the DNA in the genes seems to cody only for protein synthesis, the locations and characters of inheritable maps and other biological instructions are not immediately obvious.) The problem has been exacerbated by recent experiments with German and Austrian blackcaps. These two common European warbler species take different routes to Africa in the winter. The Ger-man blackcaps fly southwest and the Austrian southeast--routes 50 apart. A. Helbig has crossed the German and Austrian blackcaps to see what route(s ) their hybrid offspring would take. Curiously, they favored a route intermediate between those of their parents. The hybrids' route -- bisecting those of the parents' -- would take the hybrids right into the Alps, where survival would be unlikely. (Day, Stephen; "Migrating Birds Use Genetic Maps to Navigate," New Scientist, p. 21, April 21, 1991.) ...
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... Science Frontiers ONLINE No. 48: Nov-Dec 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Archaeopteryx a dead end?" Just as the 150-million-year-old Archaeopteryx fossil is being reinstated as the earliest known bird after considerable controversy, along come two crowsize skeletons that are not only 75 million years older than Archaeopteryx but also more birdlike, according to the paleontologists who discovered them. The Washington, D.C .- based National Geographic Society, which funded the work, announced this week that Sankar Chatterjee and his colleagues at Texas Tech University in Lubbock found the 225-million-year-old fossils near Post, Tex." (Weisburd, S.; "Oldest Bird and Longest Dinosaur," Science News, 130:103, 1986.) Chatterjee has named the new fossil Protoavis. "Protoavis seems certain to reopen the long-running controversy on the evolution of birds. In particular whether the common ancestor of birds and dinosaurs was itself a dinosaur. Protoavis, from the late Triassic, appears at the time of the earliest dinosaurs, and if the identification is upheld it seems likely that it will be used to argue against the view of John Ostrom of Yale University that birds are descended from the dinosaurs. It also tends to confirm what many paleontologists have long suspected, that Archaeopteryx is not on the direct line to modern birds. It is in some ways more reptilian than Protoavis, and the period between the late Jurassic Archaeopteryx and the world-wide radiation of birds in ...
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... Science Frontiers ONLINE No. 102: Nov-Dec 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The birds Remember the Hitchcock thriller with the above title? In it, a small seaside town was invaded by birds intent upon homicide. Well, something a little bit like that really happened. The real-life event actually helped Hitchcock plan his movie -- of course, D. Du Maurier's short story with the same title helped even more! Here is what really happened on the California coast: "In 1961, a small seaside town near Santa Cruz was bombarded by hordes of sooty shearwaters. The crazed birds pecked people, smashed into houses and cars, broke windows and staggered around vomiting pieces of anchovy over local lawns." This attack was initially blamed on foggy weather which might have disoriented the shearwaters, which normally stay far out at sea. The latest theory is based on the erratic behavior of the birds. They may have ingested fish that carried a marine neurotoxin called domoic acid. Domoic acid is produced by marine alga that bloom frequently along the California coast. (Mestel, Rosie; "Hitch's Birds Deranged by Dodgy Anchovies," New Scientist, p. 6, July 22, 1995.) From Science Frontiers #102 Nov-Dec 1995 . 1995-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 85: Jan-Feb 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects When a bird in the hand is worse than two in the bush When J. Dumbacher, an ornithologist working in Papua New Guinea, scratched his hand while freeing a hooded pitohui from a collecting net, his first instinct was to suck the wound. This was a bad move, for he immediately experienced a numbing and burning in his mouth. The reason for this, it turned out, was because the skin and feathers of pitohuis are loaded with homobatrachotoxin, a type of poison. This discovery makes the pitohuis the first known poisonous birds. Like many other poisonous animals, the pitohuis also emit a foul odor and advertise their unsavory nature with bright colors. (Dumbacher, John P., et al; "Homobatrachotoxin in the Genus Pitohui : Chemical Defense in Birds?" Science, 258:799, 1992. Also: Anonymous; "Bird with a Sting in Its Tail," New Scientist, p. 10, October 31, 1992.) Comment. As we see from the diagram, homobatrachotoxin possesses a rather complex chemical structure. One wonders how the pitohuis acquired the ability to synthesize it through random mutations. The puzzle deepens when one discovers that homobatrachotoxin is also manufactured by the New World poisondart frogs. Although far-separated taxonomically, both species traveled along the same path of random mutations to achieve this evolutionary convergence. From Science Frontiers #85, JAN-FEB 1993 . 1993-2000 William ...
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... Science Frontiers ONLINE No. 70: Jul-Aug 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bird Brain Alex can name 80 things, tell colors, and even seems to be able to handle a few abstract ideas. Alex is not a chimp or porpoise. Alex is an African grey parrot, who has been living in an avian Sesame Street for 13 years. Parrots are wonderful mimics and pretty bright as birds go. Nevertheless, skeptics scoff at Alex's accomplishments as only the product of long, intense training. Alex can't be too dumb. Once when he couldn't lift a cup covering a tasty nut, he turned to the nearest human assistant and demanded, "Go pick up cup." Who's training whom? (Stipp, David; "Einstein Bird Has Scientists Atwitter over Mental Feats," Wall Street Journal, May 9, 1990. Cr. J. Covey.) From Science Frontiers #70, JUL-AUG 1990 . 1990-2000 William R. Corliss ...
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... Science Frontiers Sourcebook Project Strange reports * Bizarre biology * Anomalous archaeology From New Scientist, Nature, Scientific American, etc Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics Guides available Biology Catalogs Biology Handbook Archeology Handbook Geophysics Catalogs Geological Catalogs Astronomy Catalogs Astronomy Handbook Science Frontiers Sourcebooks Ordering details Omni Edge Science Winner December 1996 Publishing History 2007: Dark Days, Ice falls, Firestorms and Related Weather Anomalies (Geophysics) 2006: Archeological Anomalies: Graphic Artifacts I 2003: Archeological Anomalies: Small Artifacts 2003: Scientific Anomalies and other Provocative Phenomena 2001: Remarkable Luminous Phenomena in Nature 2001: Ancient Structures (Archeology) 1999: Ancient Infrastructure (Archeology) 1998: Biological Anomalies: Birds 1996: Biological Anomalies: Mammals II: 1995: Biological Anomalies: Mammals I 1994: Science Frontiers, The Book 1994: Biological Anomalies: Humans III 1993: Biological Anomalies: Humans II 1992: Biological Anomalies: Humans I 1991: Inner Earth: A Search for Anomalies (Geological) 1990: Neglected Geological Anomalies 1989: Anomalies in Geology: Physical, Chemical, Biological 1988: Carolina Bays, Mima Mounds, Submarine Canyons (Geological) 1987: Stars, Galaxies, Cosmos 1986: The Sun and Solar System Debris 1985: The Moon and the Planets 1984: Rare Halos, Mirages, Anomalous Rainbows (Geophysics) 1983: Earthquakes, Tides, Unidentified Sounds (Geophysics) 1983: Tornados, Dark days, Anomalous Precipitation (Geophysics) 1982: Lightning, Auroras, Nocturnal Lights (Geophysics) 1982: Unfathomed Mind 1981: Incredible life (Biology) 1980: Unknown Earth (Geological) 1979: Mysterious Universe ...
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... Science Frontiers ONLINE No. 97: Jan-Feb 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The early (and persistent) insect catches the bird!Ruby-throated hummingbirds are spunky little bundles of avian energy. They attack crows and hawks routinely, even though they weigh no more than three dollar bills (about 3 grams). They are not weaklings, for they cross the 800-kilometer (500-mile) Gulf of Mexico non-stop. But they are, it must be admitted, so small that a burly insect might subdue one. And this has happened at least once. "Mrs. Elly Weirda of Rock Hall, Maryland. was watching her hummingbird feeder when she noticed a large praying mantis sitting on top of it. As the hummingbirds approached, it appeared as if the praying mantis was actually stalking them. This continued all day, but the hummingbirds safely eluded the clutches of the praying mantis. When the praying mantis was still on top of the hummingbird feeder the next day, Mrs. Weirda decided to capture the unusual activity on film. She quickly set up her camera and waited. As fate would have it. the praying mantis' persistence paid off. The unexpected did happen, and Mrs. Weirda captured the humming-bird's struggle on film. The amazing thing about this strange event is that the praying mantis consumed the entire hummingbird. Only a few feathers were left as witness to the struggle." (Anonymous; "' Insect Tiger' Strikes Hummingbird ...
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... Science Frontiers ONLINE No. 92: Mar-Apr 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Flies fly into frogmouth's mouth Papuan frogmouth after just catching a fly Behind this deliberately cryptic title lurks a curiosity that verges on the anomalous; namely, a bird (the Papuan frogmouth) that apparently secretes a substance in its cavernous mouth that attracts flies. This bird, according to several observers, does not have to fly with its mouth agape to catch insects like its relatives (whippoorwills, etc.). It often simply sits on a branch with its huge mouth open, and flies enter of their own accord to investigate the source of a promising odor. J. Diamond, who wrote about this "living flytrap" in the February issue of Natural History, wondered about the evolutionary rationale here: "My first thought was, nonsense! If so, frogmouths would have achieved every species' evolutionary dream -- getting food without work or cost. Then I reflected that there was indeed a cost, that of synthesizing the sticky chemical bait. On the other hand, a raven-sized bird would have to attract a lot of flying insects before its strategy of setting itself up as a living flytrap could rate as successful." In the same article, Diamond introduced the reader to two other remarkable birds also found in Papua New Guinea. Both of these birds are meaty, lumbering, and easy to kill. Ideal prey, one would suppose. However, almost as they gasp their last breath, ...
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... Science Frontiers ONLINE No. 137: SEP-OCT 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bird's Eggs As Information Carriers Bird communication may be more subtle than trills and squawks. Take, for example, the observation that the last egg laid by several species is distinctly lighter in color than the others in the clutch. This late-egg phenomenon is seen in the sparrows especially (House, Tree, Dead Sea, Grey-Head, and others). Common Terns, Fieldfares, Herring Gulls, and Moorhens also lay pale last eggs. Since the changes in the egg production line exact a cost in the females, there might be an adaptive explanation for the phenomenon; that is, the final paler egg may lead to increased survival of the participating species. To illustrate, in 1980, Yom-Tov suggested that: .. .this last odd egg might have evolved as a signal to potential brood parasites that the female has finished laying the clutch and has begun incubation. If a parasite lays its egg after incubation has commenced, then it would be unlikely to hatch, hence the potential parasite would benefit from heeding such a warning signal, if it could then find an alternative host nest where incubation had yet to commence. The signaling host would also benefit from avoiding the costs of warming an extra egg [the parasite's ] for some of the incubation period, costs that can be considerable, as well as the possible cost of having to rear an extra chick. G.D ...
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... Science Frontiers ONLINE No. 134: MAR-APR 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects What Sang First?Not WHO, but WHAT! Sophisticated music predates the advent of modern humans by tens or hundreds of million years. Whales and birds filled the ocean and primeval forest with song long before our hominid branch sprouted on the Tree of Life. As a matter of fact, our closest relatives, the great apes, sing not at all. Somewhere in the hominid genome "music" genes reside, unexpressed in the apes, but somehow triggered into activity in the human line. We have learned recently that the Neanderthals manufactured bone flutes as far back at 53,000 years. They may not have been able to speak to one another in words, but they had the language of music. Their music, and ours, may have been entrained in genes inherited from nonhominid ancestors that lived 60 million years ago, but which have been suppressed in primates until Neanderthals and modern humans came along. You may wonder where this argument is taking you. It goes back at least 60 million years to when the cetacea (whales and dolphins) split off from the evolutionary track leading to humans. It may even go back farther to when birds split away from the reptilian line. The music of birds and whales incorporate some of the complexity and sophistication of Beethoven's Fifth. The genes that have led to such musical talents may be ancient indeed, as speculated in the Science article under review. The authors go ...
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... Science Frontiers ONLINE No. 36: Nov-Dec 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Is a dog more like a lizard or a chicken?Cladism has been around since at least 1950, when the German entomologist William Hennig began classifying organisms in a new way. "His method was simple: classifications of animals and plants should be based on an assessment of their characters, and only advanced, or derived, characters (synapomorphies) should be used. For example, the character 'possession of feathers' is a synapomorphy shared by all birds that is found in no other organisms; it is used in classification to define Class Aves. All birds have a backbone too, but that is a primitive character for birds because it is seen in all other vertebrates. Primitive characters are of no use in defining a monophyletic group." Early on, cladism ignited many fireworks in the biological community. Today, cladism has become quite respectable. The cladists, however, are now fighting among themselves. One camp draws their "cladograms" (see illustration) using evolutionary theory as a guide. The other side believes that the cladograms should be drawn up first, based only upon actual characters and ignoring the theory of evolution -- let the species fall where they may. When evolutonary theory is omitted in the deliberations, radically different cladograms result. Mammals then seem more closely related to birds than reptiles, for example, as expressed in the illustration. A key connecting character here is mutual warmbloodedness. The shifting of ...
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... Science Frontiers ONLINE No. 72: Nov-Dec 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Birds Of Burden Anthropologists long ago decided that the ostrich was domesticated only in historical times. They pooh-poohed a prehistory sketch showing an ostrich carrying a human rider and pictographs of ostriches apparently fitted with pack saddles. The latest discovery may change their minds. It is a Neolithic figure (5000-7000 years old), deeply engraved on rocks along the River Blaka, in Niger, Africa. Here, the ostrich definitely appears to be loaded with cargo that is strapped on. The bird's legs are folded in a resting position. The Egyptians occasionally captured young ostriches and broke them to harness, but this engraving seems to prove that this practice had been going on long before. (Bahn, Paul; "A Head in the Sands of Time," Nature, 346:794, 1990.) Comment. One wonders what Neolithic goods the ostrich caravans carried and where they were bound. From Science Frontiers #72, NOV-DEC 1990 . 1990-2000 William R. Corliss ...
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... diameter. Their heights are 2 to about 15 feet. All of the material making up the mounds seems to come from the immediate surroundings: coral debris, earth, and grains of iron oxide. The larger tumuli enclose a block of tuff, about 5 feet high and 6 feet in diameter, comprised of tumuli material held together by a calcareous cement or mortar. Some who have investigated these mounds believe that the presence of cement, presumably man-made, is proof-positive that the tumuli are the product of human activity. Other archeologists doubt this because the early settlers of New Caledonia did not use cement. Besides, there seem to be no other signs of human involvement. This has led to the hypothesis that the mounds were built by huge, now-extinct, flightless birds for the purpose of incubating their eggs. Some birds do indeed incubate their eggs in mounds today; and some 5,000 years ago New Caledonia did boast a giant bird (Sylviornia neocale doniae), which was 5-6 feet tall. The authors of the present paper feel that the giant bird hypothesis is just as reasonable as the theory that these mounds were built by ancient humans who knew how to make cement. (Mourer-Chauvire, Cecile, and Poplin, Francois; "Le Mystere des Tumulus de Nouvelle-Caledonie," La Recherche, 16: 76, September 1985. Cr. C. Mauge.) Comment. We find in our Handbook Ancient Man an article by A. Rothovius entitled: "The Mysterious Cement Cylinders of New Caledonia." The ...
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... Science Frontiers ONLINE No. 136: JUL-AUG 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Grunting Transcends Biological And Geographical Boundaries "Grunting for worms," that is. Birds are the most frequent worm-grunters; but reptiles do it (turtles, SF#65); and so do mammals (humans, SF#106). Grunting is an amusing and effective technique for luring earthworms to the surface where they can be consumed or used for fish bait. Animals usually grunt for worms by stomping on the ground after a rain. Just why the worms below rush to expose themselves upon detecting these seismic signals is known only to them. Perhaps they think more rain is falling or that a mole is burrowing toward them. All we know is that grunting works. In the article under review, English seagulls are reported doing a flat-footed version of an Irish jig to entice their dinner to the surface. Oystercatchers, on the other hand, prefer a reel-like dance in which they cavort in circles and straight lines. Somehow, the grunting technique has been communicated to birds everywhere. Red-billed gulls in New Zealand grunt for worms, so do the olive thrushes of South Africa. (Smith, Richard Hoseason, et al; "Rain Dance," New Scientist, p. 102, May 12, 2001.) Comment. It is mildly anomalous that this unlikely hunting technique is found in so many places and employed by so many species. Our own research adds that strange New ...
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... Shahzad Hussain and his colleagues at the Long Island College Hospital in New York gave a questionnaire to 321 allergy sufferers asking them to describe their cats and assess the severity of their symptoms. Those with dark cats were four times as likely to have severe symptoms as people with light-coloured cats. "We were surprised," says Hussain. "So many questions need to be answered." (Anonymous; "The Dark Side of Black Cats," New Scientist, p. 27, November 4, 2000) Tales of toppling penguins. British scientists are heading for the South Atlantic in an attempt to disprove claims that penguins fall over backwards when aircraft fly overhead. Royal Navy and RAF pilots have been bringing back reports of toppling penguins since the Falklands War in 1982. The flightless birds are said to be so mesmerized by helicopters and jets that they lose their balance as they attempt to keep track of them. (Tweedie, Neil; "Scientists to Check on Toppling Penguins," The Age, November 2, 2000. As downloaded from the web: www.theage.com.au/frontpage/20001102/A22021-2000Nov2.html . Cr. P. Huyghe) But a missive from the British Antarctic Survey insists: .. .there is no scientific evidence for penguins falling over backwards when helicopters overfly. (Holden, Constance, ed.; "Prostrate Penguins?" Science, 290:1495, 2000.) Comment. Some birds are easily mesmerized. For example, one can hypnotize a chicken simply by holding it down on a flat ...
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... with one organ that is capable of astonishing performances that greatly exceed what is required for the tracking of animals and the grubbing of edible roots. This is the human brain, of course. Not as widely appreciated for its versatility is the human vocal tract. It can generate much more than brute grunts. It renders operatic arias of great beauty and frequency range. The vocal tract can do even more than that; it can carry two musical lines simultaneously. This skill is called "throat-singing" or "overtonesinging." The best-known throat-singers live in the Tuva region of southern Siberia. The semi-nomadic herders of this wild region were evidently inspired to develop throat-singing so that they could better mimic the sounds they heard in nature: the singing of birds, the wind, the sounds of insects. Throat-songs have two components. The first is at a low, sustained fundamental pitch, which can be likened to the drone of a bagpipe. The second, superimposed on the low drone, is a succession of flute-like sounds that resonates high above the drone. It is the second component that can be controlled so as to mirror natural sounds. The result is like nothing Mozart or Verdi conceived. But it is an art form valued in Tuva and a talent rather remarkable from a biologist's perspective. One should compare the vocal tract to an organ pipe with its standing waves, except that the human pipe is only 7 inches long in the average adult male. One end of the human pipe is the mouth ...
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... Science Frontiers ONLINE No. 61: Jan-Feb 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Egg Mimicry In Cuckoos In Britain, cuckoos mainly parasitize five species of smaller birds. They do this by laying their eggs in the hosts' nests. After hatching, the young cuckoos grow much faster than the young of the host species. Soon the cuckoo is able to eject the host's young from the nest and get all the food brought by the parents. Actually, the cuckoo is so aggressive in this business of parasitization that, when it finds a host nest with eggs so far along in incubation that parasitization is impractical, it destroys the whole nest. This usually forces the host birds to lay fresh eggs, giving the cuckoo a chance to parasitize the nest. The most remarkable thing about cuckoo parasitism is the birds' ability to match the eggs of the host species in size, spottedness, background color, and darkness. The eggs of all five species commonly parasitized in Britain are much smaller than a bird the size of the cuckoo would normally lay; but the cuckoo still manages to lay eggs of just the right size. When the bona fide eggs of the five parasitized species are placed side-by-side with the mimics layed by the cuckoos, the matches are uncanny - except in the case of the dunnock, which the cuckoo doesn't try to mimic at all. The question, of course, is how the cuckoos do it. American cuckoos rarely parasitize the nests of other ...
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... Science Frontiers ONLINE No. 137: SEP-OCT 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Mysterious Losses And Acquisitions of Color Vision The eyes of most mammals incorporate two types of color-sensitive cones; one for seeing blue light, the other for green light. Such mammals have bichromatic vision and discern colors rather well. Humans and the other primates are blessed with trichromatic vision, for their eyes have cones that register red light. Does this indicate evolution superiority? Hardly, birds possess five types of color-sensitive cones that sense two additional parts of the spectrum. How and why these enhancements in color vision occurred are not well-understood. Nor do we know why they were restricted to mammals and birds; although it is easy to fabricate several survival-of-the-fittest scenarios. The "how" part of the mystery is particularly hard to grasp in neo-Darwinian terms because the complex pigments that confer spectral sensitivity upon the cones represent remarkable, complex chemical syntheses. Also mysterious is the apparent loss of color vision in 14 species of toothed whales and seals. (Only 14 species were examined; there may be more.) These particular whales and seals lack the blue-sensitive cones, even though they are descended from mammals with bichromatic vision (hippos and otters, respectively). This deficiency is doubly perplexing: Sensitivity to blue light is highly desirable in the ocean environment because it is blue light that penetrates seawater well. The loss occurred in two mammalian lineages not particularly closely related on ...
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... Science Frontiers ONLINE No. 119: Sep-Oct 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Murder In The Nest In a recent issue of BioScience, R.B . Payne authored an excellent review of brood parasitism in birds. Brood parasites lay their eggs in the nests of other species, which then incubate the eggs and raise the alien chicks. The parent parasites are thus free to forage, hang out, and parasitize more nests. Brood parasitism is such a successful and easy way of life that 136 species of cuckoos, 5 species of cowbirds, 20 finches, and South America's Blackheaded Duck have adopted it. Brood parasitism fascinates ornithologists because it involves war between the parasites and their hosts. Since host species may eject parasite eggs or fail to nurture parasite chicks, brood parasites have evolved mimicry as a powerful weapon in these battles. Mimicked are host eggs, host nestlings, and host vocalizations. But the most insidious weapons of all involve the outright murder of host chicks. To this end, parasite chicks have evolved some special weapons and behaviors. Some cuckoo chicks evict host eggs or chicks by squirming under them and positioning them in a specially configured hollow on their backs. Then, pushing upward and outward to the rim of the nest, they dump their cargo over the edge. Other brood parasites are more direct and bloodthirsty. "Nestling African honeyguides have bill hooks to stab and kill their nestmates and the brood parasitic American striped cuckoos have independently evolved hooks and pincers to kill." (Payne ...
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... Science Frontiers ONLINE No. 69: May-Jun 1990 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Extinction Countdown Some plants may, as described below, have environment-sensitive genes that help them adjust to external pressures. Amphibians and birds do not seem to be so pliable. The worldwide precipitous decline of amphibian populations is alarming. Her-petologists are literally seeing species disappear before their eyes. Here is a typical anecdote: "In 1974, Michael Tyler of the University of Adelaide, Australia, described a newly discovered frog species that broods its young in its stomach. The frog was once so commo 'an agile collector could have picked up 100 in a single night,' Tyler says. By 1980 it had completely disappeared from its habitat (a 100-square-kilometer area in the Conondale Ranges, 100 miles north of Brisbane). It has not been seen since." Similar stories emanate from Brazil, Japan, Mexico, Norway, and elsewhere. Many environmental causes have been proposed, but it is significant that the frogs are also disappearing from nature preserves where environmental pressures are small. D. Wake, a biologist at Berkeley, has remarked: "[ Amphibians] were here when the dinosaurs were here, and [they] survived the age of mammals. If they're checking out now, I think it is significant." In this context, Wake believes that there is a single, global, still-unidentified cause operating. (Barinaga, Marcia; "Where Have All the ...
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... Science Frontiers ONLINE No. 119: Sep-Oct 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Cassowary, 1; Automobile, 0 Many birds are done in by fast-moving cars. The usual avian mode of retaliation involves defecation, especially on freshly washed and polished automobiles. On occasion, though, birds will use brute force. For example, keas (New Zealand parrots) consider it their duty to pry out the rubber gaskets around automobile windshields with their powerful bills. A cassowary can be even more forceful. Recently, a motorist near Cairns, Australia, was forced to stop by a sixfoot cassowary standing in the middle of the road. He edged the car forward slowly, but the huge bird stood its ground. Then, he blew his horn. Bad move! The cassowary objected by kicking the auto, pushing the radiator into the fan, which cut a hole in it. (Anonymous; "Feedback," New Scientist, p. 104, June 13, 1998.) Comment. The flightless cassowaries are armed with sharp toenails, with which they disembowel New Guinea natives who displease them. Besides disposing of obstreperous automobiles, cassowaries are said to catch fish by wading into streams, spreading out their wings, waiting, and then closing them on sheltering fish. (From: Biological Anomalies: Birds). From Science Frontiers #119, SEP-OCT 1998 . 1998-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 80: Mar-Apr 1992 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Thousands Of Grebes Fall From The Skies December 10, 1991. Minersville, Utah. About 9:30 PM, the skies of Minersville were filled with the cries of birds. According to V. Hollingshead "They were just falling out of the sky, hitting the church, cars, the ball parks. Hundreds of them fell all over the streets. You could hear them hitting each other in the air, and hitting the ground." Minersville Elementary School Secretary S. Taylor reported that the birds landed everywhere, including the roofs of houses; they even broke some automobile windshields. Hundreds were killed, but many survived their fall and were taken to bodies of water where they could rest and take off. (Grebes cannot take off from land.) The birds were identified as eared grebes, which were migrating from Great Salt Lake to Baja California. It was theorized that a snowstorm and fog had exhausted and disoriented them. (Christensen, Kathleen; "Thousands of Grebes Fall from the Skies," Spectrum , December 12, 1991. Cr. D.H . Palmer.) From Science Frontiers #80, MAR-APR 1992 . 1992-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 53: Sep-Oct 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Tsunami And A Peruvian Cultural Glitch We quote from the abstract of a paper by R.M . Bird from American Antiquity. "While investigating the archaeological background of early maize on the coast of Peru, I realized that several factors affect interpretation. The estimated date for the start of common use of maize there is close to the apparent dates of a large tsunami, the abandonment of many coastal sites, and the start of occupation at Chavin de Huantar in the highlands. While investigating the possible relations between the principal pretsunami coastal culture and Chavin, I discovered that depictions of a monstrous head link the two cultures." The "monstrous head" is thought by the Bird to be a stylized representation of a tsunami wave. Not mentioned at all in the abstract are the physical evidences of tsunami damage along the Peruvian coast. This article portrays the possible effects on the ancient manmade structures in the region as well as the widespread deposits of sand, cobblestones, and other sediments. (Bird, Robert McK.; "A Postulated Tsunami and Its Effects on Cultural Development in the Peruvian Early Horizon," American Antiquity, 52:285, 1987.) Profile of a north-south site trench at a a site on the Peruvian coast, showing thick strata that may have been deposited by a tsunami. From Science Frontiers #53, SEP-OCT 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 30: Nov-Dec 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Weak Missing Link Evolutionists have always pointed to the Archaeopteryx as a most convincing missing link between the reptiles and birds. The modern study of some really excellent fossil specimens of Archaeopteryx have clouded this issue. The feathers of Archaeopteryx, as preserved in fine limestone, are found to be asymmetrical as required for efficient flight. (Flightless birds have symmetric feathers) The skull is more birdlike than previously thought. In fact, some aspects of Archaeopteryx are like those in "advanced" birds; others are "primitive" There are now three strongly held views among scientists: Archaeopteryx is related to: (1 ) crocodiles; (2 ) theropod dinosaurs; and (3 ) thecodontians (other reptiles). (Benton, Michael J.; "No Consensus on Archaeopteryx," Nature, 305:99, 1983.) From Science Frontiers #30, NOV-DEC 1983 . 1983-2000 William R. Corliss ...
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... seems to be a 3-page book: biomorphs, geoglyphs, and spoked ray-centers. They all overlap. It's all a gigantic Rorschach test; and different observers see different things! A Nazca biomorph (monkey with spiral tail) overlain by an abstract, unexplained geoglyph. See Book Supplement for still another Nazca figure. Of course, there are doodles on this 400-square-mile canvas that don't fit on any of the three pages. We'll have to ignore them for now. The archeoastronomers first tried to read something meaningful into the Nazca lines, but they were disappointed. Computer analyses revealed no significant connections with the rising and settings of heavenly bodies. Next, some tried to relate the biomorphs to the celestial sphere. Did a terrestrial bird figure point toward a bird-like grouping of stars? A few earth-sky bird connections are interesting in this regard, but generally the idea that the Nazca lines are a terrestrial zodiac has not panned out well. The geo-speculators have had more success. There are many "water" connections. The geoglyphs were drawn at the time of a great drought. The geoglyphs are often colocated with groups of subterranean aqueducts called "puquios," which were constructed during the drought. The "ray centers" are usually located near water sources. The trapezoids are generally oriented parallel to the flow of surface water. Seashells and ceremonial drinking vessels have been excavated near the trapezoids, suggesting water-connected rituals. Fossil footpaths follow many of the Nazca lines. Accumulating evidence has led ...
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... they are heated to see how much temperature is required to force them apart. Chromosome numbers and bandings have little if any effect on these crude comparisons of the bare DNA strands that have been stripped from their genes and chromosomes. The significance of all this transcends the comparisons of humans and chimps. Modern taxonomy of all life forms depends increasingly upon DNA comparisons rather than upon morphology. If DNA comparisons can be as misleading as they are in humans and chimps, those textbook family trees that are supposed to tell us how life evolved may also be giving us an erroneous history of life. To underscore the problem, sometimes DNA genetic differences do not result in big morphological changes. For example, Three-toed Woodpeckers hammer on trees all over the northern reaches of North America and Eurasia. These birds all look alike and interbreed freely. Yet, some of the birds differ so much genetically that they should be classified as different species on that basis. (See BBG1 in Biological Anomalies: Birds.) From Science Frontiers #122, MAR-APR 1999 . 1999-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 121: Jan-Feb 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Starlings Fall Out Of The Sky Late October, 1998. Tacoma, Washington. About 300 starlings dropped out of the sky on this date. Neither poison nor disease was the cause. The birds all suffered crunched chests and blood clots in hearts and lungs. Since starlings fly in tight formations, some speculated they had smashed into the side of a large truck (? ), or perhaps a wind gust had thrown them to earth violently. (Anonymous; "Bird Deaths Still Mystery," Houston Chronicle, October 31, 1998. Cr. D. Phelps. Also: Anonymous; "300 Starlings Drop out of Sky Dead," Scranton Times, October 31, 1998. Cr. M. Piechota.) Comment. A much greater avian catastrophe took place near Worthington, Minnesota, March 13-14, 1904. After a storm, dead and dying Lapland Longspurs were strewn over a wide area. A scientist from the Minnesota Natural History Survey marked off squares in the snow covering two frozen lakes and began counting and counting and counting. On the lakes alone, 750,000 Lapland Longspurs lay dead. It was estimated that 1,500,000 died just in the area around Worthington. The injuries of the longspurs were much like those suffered by the starlings. (Details in our latest catalog: Biological Anomalies: Birds) From Science Frontiers #121, JAN-FEB 1999 . 1999-2000 William ...
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... Science Frontiers ONLINE No. 110: Mar-Apr 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sparrows At Play While looking through the ornithological literature for avian anomalies recently, we found an irresistible item that bears on that deeply profound bit on "Crow Woes" appearing in SF#109. Remember how the Yokohama crows placed stones on the train tracks and dropped others on houses? Well, this stone-dropping must have some adaptive value in the evolution of birds, because sparrows have also inherited the trait. E.C . Jaeger recounted this anecdote in a 1951 number of The Condor : "During my high school days at West Point, Nebraska, my father was a merchant occupying a building of two stories with a long pebble-covered, tarred roof sloping to the rear. Forming a short walkway behind the rear entrance were two sloping doors, which, when opened up, admitted entry to the basement stairway. Over a period of several days in mid-May of 1903, I noticed many small pebbles scattered about on these doors. I also heard from time to time the sound of small objects falling on the doors. Efforts to find the pebble-droppers were of no avail until one day when I happened to approach the rear of the building from the alley. My position some fifty feet from the building now permitted me to see several House Sparrows ( Passer domesticus ) bringing small stones to the edge of the roof and dropping them. As each pebble was dropped the bird involved turned its head ...
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... Sourcebook Project Sourcebook Subjects Do woodcocks "grunt" for worms?Earthworms have a potentially fatal habit: When they detect vibrations propagating through the ground, they quickly squirm their way to the surface. Perhaps they think a mole is tunneling after them, or maybe rain is beating down above. Whatever goes through their "minds," they emerge on the surface in response to vibrations and may be snapped up by several species that know their weakness. Human fishermen know the worms' weakness and "grunt" for them in several ways; say, by drawing a notched stick across the trunk of a small tree to generate vibrations. Wood turtles are said to "stomp" for worms. (SF#65) Kiwis and Kagus also stomp for their dinner. (Kagus are rather strange birds found in New Caledonia.) We have just learned that Woodcocks will beat their wings against the ground to coax earthworms within range. (Hennigan, Tom; "A Wonderfully Bizarre Bird," Creation/Ex Nihilo , 19:54, September-November 1997.) Comment. Woodcocks seem to lure worms to the surface in still another way: They "bob" or "rock" their body in a most peculiar manner. It is thought that the resulting pressure waves are transmitted to the ground through their feet and that these bring their favorite prey to where they can be grasped. (Marshall, William H.; "Does the Woodcock Bob or Rock -- and Why?" The Auk , 99:791, 1982.) The American Woodcock -- a ...
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... Science Frontiers ONLINE No. 29: Sep-Oct 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Genes aren't everything Many species of birds show considerable variation in size, shape, and coloration in various parts of their ranges. Hithertofore, such geographical variations had been considered to be genetically controlled; that is, the genes also varied with the geography. But experiments in which the eggs of redwinged blackbirds were interchanged between nests in northern and southern Florida and also between Colorado and Minnesota seem to show that the environment is more important than genetic endowment. In the redwinged blackbird, the bill size and shape and body weight of the transplanted birds (after hatching, of course) were characteristic of the locale in which they were raised rather than that where the eggs were laid. (James, Frances C.; "Environmental Component of Morphological Differentiation in Birds," Science, 221:184, 1983.) From Science Frontiers #29, SEP-OCT 1983 . 1983-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 59: Sep-Oct 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects THE NEW ARCHAEOPERYX FOSSIL A new fossil of Archaeopteryx has been found in a private collection, where it was misclassified as a small dinosaur. The specimen was actually found many years ago by an amateur in the Upper Jurassic Solnhofen limestone in Bavaria, in about the same area as the Berlin and Eichstatt Archaeopteryx fossils. Under low-angle illumination, the new specimen shows parallel impressions originating from the lower arm of the left "wing." These impressions are "interpreted" as imprints of feather shafts. Thus, the new fossil reinforces the mainstream position that Archaeopteryx really did have feathers and was a link between reptiles and birds. Evolutionists will rest easier now. Two bothersome observations intrude, however. First, although the report on the new specimen states that the question of forgery does not arise here, even though the specimen's tail has been restored to the length deemed by the owner. In addition, the new Archaeopteryx is 10% larger than the London specimen, 30% larger than the Berlin specimen, and fully twice the size of the Eichstatt specimen. Is there more than one Archaeopteryx species? (Wellnhofer, Peter; "A New Specimen of Archaeopteryx," Science, 240:1790, 1988. Also: Wilford, John Noble; "Fossil May Help Tie Reptiles to Birds," New York Times, June 24, 1988. Cr. J. Covey) Comment. We wonder if Hoyle and ...
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... Science Frontiers ONLINE No. 50: Mar-Apr 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Feathered Flights Of Fancy Some more salvos have been fired in an endlessly fascinating controversy (at least it is that to us). First, F. Hoyle and C. Wickramasinghe, hardly strangers to these columns, have published Archaeopteryx, The Primordial Bird: A Case of Fossil Forgery. The book elaborates their theory that the Archaeopteryx fossils, much ballyhooed as "proofs" of evolution, are outright forgeries. Second, T. Kemp, a zoologist on the staff of the University Museum, has returned the fire with a mean-minded review. He states that Hoyle and Wickramasinghe "exhibit a staggering ignorance about the nature of fossils and fossilization processes." Kemp concludes his review with an admission that the possibility of forgery should indeed be investigated. "But it should be done by those who actually understand fossils, fossilization and fossil preparation, not by a couple of people who exhibit nothing more than a gargantuan conceit that they are clever enough to solve other people's problems for them when they do not even begin to recognize the nature and complexity of the problems." (Kemp, Tom; "Feather Flights of Fancy," Nature, 324:185, 1986.) Finally, Hoyle and Wickramasinghe reply in a letter to Nature that L.M . Spetner and his colleagues in Israel have analyzed samples of the Archaeopteryx fossil with a scanning electron microscope and X-ray spectroscopy. Results: the rock ...
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... Science Frontiers The Book Strange reports * Bizarre biology * Anomalous archaeology From New Scientist, Nature, Scientific American, etc Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics Science Frontiers The Book Contents Science Frontiers is an indexed compilation of the first 86 issues of our Science Frontiers newsletter . Chapter 1. Archeology: Ancient Engineering Works * Small Artifacts * Epigraphy and Art * Bones and Footprints * Diffusion and Culture. Chapter 2. Astronomy: Planets and Moons * Solar System Debris * Stars * Galaxies and Quasars * Cosmology. Chapter 3. Biology: Humans .* Other Mammals * Birds * Reptiles and Amphibians * Fish * Arthropods * Invertebrates * Plants and Fungi * Microorganisms * Genetics * Origin of Life * Evolution. Chapter 4. Geology: Topography * Geological Anomalies * Stratigraphy * Inner Earth. Chapter 5. Geophysics: Luminous Phenomena* Weather Phenomena * Hydrological Phenomena * Earthquakes * Anomalous Sounds * Atmospheric Optics. Chapter 6. Psychology: Dissociation Phenomena * Hallucinations * Mind - Body Phenomena * Hidden Knowledge * Reincarnation * Information Processing * Psychokinesis. Chapter 7. Chemistry, Physics, Math, Esoterica: Chemistry * Physics * Mathematics. Comments from reviews: "This fun-to-read book may lead some to new scientific solutions through questioning the phenomena presented", Science Books and Films Publishing details: 356 pages, paperback, $18.95, 417 illus., subject index, 1994. 1500+ references, LC 93-92800 ISBN 0-915554-28-3 , 8.5 x 11. Order From:The Sourcebook Project P.O . Box ...
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... Science Frontiers ONLINE No. 42: Nov-Dec 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Feathers fly over fossil 'fraud' How many plays on words do you count in the following paragraph? "Britain's own scientific knight-errant, Sir Fred Hoyle, has fallen fowl of the palaeontologists. He has flocked together with those who think that the best-ever missing link, the reptile-bird Archaeopteryx, is a convenient fake. Creationists are understandably in high feather about it all. But now, it looks as though they may be left with egg on their faces. ' We first reported on the Archaeopteryx Affair in SF#39. In the present article by Ted Nield, the evolutionists seem to be responding to Hoyle's claim with ridicule and innuendo. Referring to the claim of fossil forgery, which Hoyle based on photos taken with a low-angle flash and EN100 film, Nield wonders why it was published in the British Journal of Photography instead of Nature or Science implying that Hoyle's group didn't dare submit their report to high-class journals! As for the "discovery" of double-struck feathers in the Archaeopteryx fossil, which Hoyle thinks were the result of inexpert forgers, Nield remarks that these were noted by naked as long ago as 1954, and are due to two rows of slightly overlapping feathers with faint "through-printing". And while it is true that the two halves of the fossil studied by the Hoyle group are not perfect positive ...
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... Science Frontiers ONLINE No. 39: May-Jun 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Status of archaeopteryx up in the air!That famous missing link, Archaeopteryx, the flying reptile, continues to make headlines. The major argument at the 1984 International Archaeopteryx Conference, in Eichstaett, was about whether Archaeopteryx could fly at all, despite its advanced, aerodynamically shaped feathers. It certainly could not have flown well since it lacks the supracoracoideus pulley-system that acts as a wing elevator in birds. Archaeopteryx could not have raised its wings above the horizontal, making it a poor flier at best. It also lacked the birds' keel bone to which the wing muscles are anchored. But those exquisitely designed feathers, so modern in appearance, tilted the scales. The consensus of the Conference was that Archaeopteryx could indeed fly. (Howgate, Michael E.; "Back to the Trees for Archaeopteryx in Bavaria," Nature, 313:435, 1985.) The really interesting part of the continuing Archaeopteryx saga comes from the recent charge of Fred Hoyle and others that the Archaeopteryx fossil is an outright forgery. Hoyle et al insist that Archaeopteryx could not have flown at all, given its bones and musculature. Archaeopteryx looks like a reptile and was a reptile. As for the modern-looking feathers, they were probably added to the fossil fraudulently. And there do seem to be parts of the fossils on display in London and East Berlin that look highly suspicious. Conventional paleontologists are, of course, aghast ...
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... Science Frontiers ONLINE No. 39: May-Jun 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bone Bed Discovered In Florida A new bond bed has been discovered south of Tampa. Paleontologists say it it is one of the richest fossil deposits ever found in the United States. It has yielded the bones of more than 70 species of animals, birds, and aquatic creatures. About 80% of the bones belong to plains animals, such as camels, horses, mammoths, etc. Bears, wolves, large cats, and a bird with an estimated 30-foot wingspan are also represented. Mixed in with all the land animals are sharks' teeth, turtle shells, and the bones of fresh and salt water fish. The bones are all smashed and jumbled together, as if by some catastrophe. The big question is how bones from such different ecological nitches -- plains, forests, ocean -- came together in the same place. (Armstrong, Carol; "Florida Fossils Puzzle the Experts," Creation Research Society Quarterly, 21:198, 1985.) From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...
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... ONLINE No. 22: Jul-Aug 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Bowerbird art for art's sake The bowerbirds of New Guinea and Australia build and decorate marvelously intricate and esthetic works of art. One must classify these impressive structures as works of art, even by human standards. For example, the bowers have geometrical organization and may be oriented to a specific compass direction, depending upon the species. Colorful berries, stones, and, when available, human artifacts are systematically arranged around the bower. Some bowerbirds even take a piece of bark in their bills and paint their bowers with colored berry juices. Each species has a certain style, but the bowers vary from individual to individual and with the age of the bird. Manifestly, these birds use tools for artistic purposes. Or do they? Is it all instinct? Some animal behaviorists believe the bower's purpose is to attract mates, but the males often chase females away, although mating does eventually occur within the bowers. A second explanation is that the bowers symbolize territorial rights. In this context, bowerbirds fre-quently raid and destroy neighboring bowers, stealing choice decorations -- all very human-like behavior. (Diamond, Jared M.; "Evolution of Bowerbirds' Bowers: Animal Origins of the Esthetic Sense," Nature, 297:99, 1982.) Comment. Is human art any more profound than that of the bowerbirds? Human artists doubtless feel they are doing something more than attracting mates or proclaiming territory. ...
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... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Mysterious First Green Egg In SF#138, we addressed the subject of birds' eggs as signals. Another similar and even more curious case occurs on the Antipodes Islands 500 miles southeast of New Zealand. There, five species of erect-crested penguins breed. These birds normally lay two eggs but raise only one chick. The first egg is distinctly greenish and much smaller than the second white egg. The little greenish egg is totally neglected and often ejected from the nest. No one knows why. (Davis, Lloyd Spencer; "A Superlative Penguin," Natural History, 110:46, November 2001.) First and second eggs of an Erect-Crested Penguin, respectively. (Left) Small and greenish (Right) Large and white. Comment. We suppose the first little egg could be a trial run of the female's reproductive machinery. Its small size and subsequent neglect seem to indicate that it is not a "back-up" egg in case the second egg is defective or eaten by a predator. Or maybe the little egg is a sop to predators with a hope that they will be satisfied with it. It would be interesting to know if the first eggs are ever hatched and what sort of chicks emerge. From Science Frontiers #139, Jan-Feb 2002 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology ...
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... Science Frontiers ONLINE No. 116: Mar-Apr 1998 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Monarch Compasses Field experiments down the years suggest that migrating birds use a variety of strategies to chart their courses with high precision. The geomagnetic field, the sun, the stars, prominent landmarks, and even odors help guide them across the continents and open seas. But birds are considered highly evolved animals so their sophisticated navigational techniques are not especially surprising. Monarch butterflies, however, are mere insects, with tiny brains (navigation-data processors) and not much in the way of the environment sensors and internal clocks required for long-distance migration. Yet, some of these colorful insects manage to flutter up to 4,000 kilometers from the eastern U.S . and Canada to their wintering grounds in Mexico. How do they do this? S.M . Perez et al have now shown that monarch butterflies are equipped with a sun compass; that is, they chart their courses by noting the sun's changing azimuth. This feat requires not only the measurement of solar azimuth but also reference to an internal clock. Humans cannot do this without artificial instruments. Furthermore, even on cloudy days, migrating monarchs fly in the proper direction (generally south-southwest). Apparently, they also have evolved a backup navigation system, perhaps a geomagnetic compass. (Perez, Sandra M., et al' "A Sun Compass in Monarch Butterflies," Nature, 387:29, 1997.) Comment ...
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... nothing to fool around with. They can cause humans severe pain and weeks of paralysis. And a dog can lose its life when a platypus clamps its legs around its muzzle and drives in its spurs. But, ask evolutionists, how did this poison apparatus get on the hind legs? The supposed ancestors of the platypus, the reptiles, modified their salivary glands for venom delivery. How did the platypusses break from this evolutionary mold and innovate? It's not consistent with the text! The fossil record reveals that a platypus-like creature lived long before the Age of Mammals. These early platypusses had teeth in the adult phase, whereas their modern relatives replace their baby teeth with horny plates -- another innovation. Therefore, far from being a hodgepodge of parts left over from bird and reptile evolution, the platypus has actually pioneered several zoological features. Very curious is the fact that the platypus is in many ways like the beaver -- a very, very distant relative both in distance and position on the Tree of Life. Both platypus and beaver are furry, aquatic creatures with webbed feet and a large, flat tail. We have saved the strangest part for the end! Platypusses, being Monotremes (one-enders) have a common vent for waste and reproduction. Beavers, it turns out, are among the very rare placental mammals that (like the birds) possess a cloaca -- a common vent for urine and excrement. (Hoffman, Eric; "Paradoxes of the Platypus," Scientific American, 264:18, March 1991.) ...
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