15 results found.
... Science Frontiers ONLINE No. 65: Sep-Oct 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Wood Turtle Stomp J.H . Kaufmann is a zoologist with strong proclivities for wood-turtle watching. Not a very strenuous vocation you say! Be that as it may, wood turtles make up for their lack of speed with some interesting talents. Besides being able to home accurately over unfamiliar terrain, they also know how to "grunt" - not vocal grunting, but a much more curious activity. Kaufmann relates one of his observations: "I came upon an adult male. When I first saw him he was sitting quietly beside a creek, but he soon wandered into a damp thicket of alder, spicebush, and false hellebore. Before disappearing from sight, however, he began to rock back and forth. I followed, trying to stay just close enough to see what he was up to without disturbing him. Fortunately, he did not scare easily, which allowed me to approach within a few yards as he meandered, walking and rocking. First, I noticed that the rocking was caused by short bouts of stomping with the front feet, alternating between left and right. Then he suddenly jabbed his head at the ground and ate something. This behavior continued for a half hour, and several times I caught a glimpse of the prey - earthworms snatched from the surface. I suddenly realized the turtle was 'grunting' for worms!" Turtle preparing to stomp; i.e . 'grunt ...
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... Science Frontiers ONLINE No. 112: Jul-Aug 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sea turtles: from one end to the other Leatherback turtles are mysterious in several ways: flexible shell, warmbloodedness, etc. (See SF#76 for more.) Now, we add two more remarkable capabilities to their dossier. Precision navigation. The oily, flexible shells of leatherbacks have made it difficult for researchers to attach radio transmitters to the animals. Their very deep dives (over 1,000 meters) are also inimical to human instrumentation. But S.J . Morreale's group at Cornell have succeeded in attaching pressure-resistant transmitters to the shells on short tethers. This team was able to track female leatherbacks as they left their nesting beach in Costa Rica and headed southward, past the Galapagos, out into the open South Pacific. Surprisingly, all the leatherbacks plied a very narrow corridor each year of the experiment (1992-1995). In fact, the paths were almost for at least 2,700 kilometers southwest of the Galapagos. Highprecision navigation equipment is required here. Among the leatherbacks' "instruments" are probably sensors that detect the angle of the geomagnetic field, the length of daylight, and the identities of the oceanic currents encountered. There are probably other sensors and, of course, a brain to process all the signals; but virtually nothing is known about them. (Morreale, Stephen J., et al; "Migration Corridor for Sea Turtles," Nature, ...
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... Science Frontiers ONLINE No. 76: Jul-Aug 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Eight Leatherback Mysteries Our subject here is the leatherback turtle. Weighing up to 1600 pounds, it is the largest of the sea turtles. It is also the fastest turtle, hitting 9 miles per hour at times. But weight and speed are not necessarily mysterious; here are some characteristics that are: The leatherback is the only turtle without a rigid shell. Why? Perhaps it needs a flexible shell for its very deep dives. What looks like a shell is its thick, leathery carapace -- a strange streamlined structure with five to seven odd "keels" running lengthwise. These turtles are warm-blooded , and able to maintain their temperatures as much as 10 F above the ambient water, just as the dinosaurs apparently could. The bones of the leatherback are more like those of the marine mammals (dolphins and whales) than the reptiles. "No one seems to understand the evolutionary implications of this." Leatherbacks dive as deep as 3000 feet which is strange because they seem to subside almost exclusively on jellyfish, most of which are surface feeders. Like all turtles, leatherbacks can stay submerged for up to 48 hours. Just how they do this is unexplained. Their brains are miniscule. A 60-pound turtle possessed a brain weighing only 4 grams -- a rat's weighs 8! Leatherbacks' intestines contain waxy balls, recalling the ambergris found in the intestines of sperm whales. The stomachs of ...
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... Science Frontiers ONLINE No. 52: Jul-Aug 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects New Vertebrate Depth Record S. Eckert, of the University of Georgia, has reported that a leatherback turtle fitted with a recording device dove to 1200 meters. This exceeds the previous record for air-breathing vertebrates (sperm whales). Leatherbacks also hold other records, being the largest of living turtles (over 600 kilograms) and the most widely distributed reptile in the world. They are also capable of maintaining their body temperatures sub stantially above the ambient water temperature, although no one has as yet claimed that they are warm-blooded. (Mrosovsky, N.; "Leatherback Turtle Off Scale," Nature, 327:286, 1987.) From Science Frontiers #52, JUL-AUG 1987 . 1987-2000 William R. Corliss ...
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... Do Predatory Mammals Kill the Unfit? BMX6 Unusual Aggression among Mammals BMX7 Unusual Mammal-Animal Psychological Interfaces Unusual Gut Symbionts Sperm-Whale Encounters with Giant Squid BP PLANTS & FUNGI Titles not yet posted BR REPTILES AND AMPHIBIANS BRA EXTERNAL APPEARANCE AND AND MORPHOLOGY Exceptional Abundance and Diversity in Australia Newts and Salamanders Are Penisless; They Use Spermatophores Like Scorpions Some Male Salamanders Have Special Teeth to Inject Females with Pheromones Discardable (Sometimes Autonomous) Tails Mimicry in Reptiles Sports, Terata She-Male Snakes and Lizards Sharp Differences within Some Frog Species Caecilians Are Just Vertebrate Bags of Fluid Salamanders with Ballistic Tongues Tuataras Have No Penis, Unique among Reptiles Lizard Color Changes with Temperature Caecilians Have Pop-Out Eyes Convergent Evolution among Island Lizards Some Lizard Eggs Luminous Snakes with Rudimentary Legs Night-Shining Eyes Hinged Teeth Grass inside Turtle Egg Lizard Mite Pockets Blind Batrachians Design and Purposes of Forked Tongues Gender Changes in Frogs Frogs and Snakes with Aerodynamic Surfaces [BRB] Receptacles for Carrying Eggs Young Reptiles with Lures Snake with Extra Hinge in Jaw Reptiles that Change Color Midwife-Toad Saga (Kammerer) Gecko with Velcro Feet Neoteny and Heterchrony All-Female Species [BRF Parthenogenesis, Virgin Birth] Giant Reptiles Tuatara Third Eye Salamander Cannibalistic Morphs Convergence among Island Lizards Living Fossils (Evolutionary Stasis) Throat Teeth in Snakes Fringed Feet on Desert Lizards Olms Hairy Frogs Snakes Have Two Penises Changing Color to Control Temperature Spines to Condense Moisture Frogs with Pouches for Young Incubator Structures on Toads Chameleon Tongues Longer Than Bodies Riddle of the Basilisk BRB BEHAVIOR Snakes Swallowing Young Frogs Swallowing Young Frogs "Appreciating" Music Arboreal Salamanders Frogs Croaking in Unison Lizards ...
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... Issues This Issue Sourcebook Project Sourcebook Subjects No unknown monsters in those fiji underwater caves: nevertheless, the mystery deepens A videotape of those unusual skeletons in the Fiji underwater caves mentioned above has been studied by scientists at the Queensland Museum. The are not the remains of unknown monsters -- they are only dolphin bones! But one mystery has been replaced by several. It seems that there were three different species of dolphins, and they were found at the closed ends of underwater passages that were just a bit larger than the living animals themselves. Why did three different species go into the caves at all? Why did they go all the way to the ends of the closed passages, given their excellent echo-location systems? Pertinent here is the discovery of skeletons and recent carcasses of green turtles in similar situations in underwater caves in Indonesia. Turtles lack the dolphins' echo-location equipment, but they are still excellent navigators. (Molnar, R.E .; personal communication, July 2, 1991. Molnar is a scientist at the Queensland Museum.) Comment. Another question comes to mind: Could the demise of the dolphins in the Fiji caves be related to the occasional strandings of whales and other cetacea on beaches all over the world? Is there a common failure in perception and/or navigation? From Science Frontiers #77, SEP-OCT 1991 . 1991-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 65: Sep-Oct 1989 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The samurai and the ainu Breaking the 12,000-bp barrier Astronomy Sweeping anomalies under the rug Fossil from mars? Biology The wood turtle stomp Why the hammer head? Initial bipedalism! Microorganisms at great depths Geology Fossil ufos Chemical surprises at the k-t boundary Geophysics Unusual sounds preceding lightning Books about the crop circles Psychology Pi in the mind! Calendar calculating by "idiot savants" General How fares cold fusion? How fares benveniste? ...
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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 Rubber Duckies Chase Nike Shoes Across Pacific Remember that amusing item in SF#84 about the 80,000 Nike shoes that were lost overboard in the Pacific in 1991? These shoes washed ashore months later in Canada and Alaska, carried thousands of miles by prevailing currents. Well, it's happened again. This time, eleven steel containers fell off a cargo vessel in the North Pacific near the International Dateline. The containers released 29,000 bath toys: duckies, turtles, froggies, and beavers. Ten months after the spill (January 10, 1992), the first yellow duckies washed ashore in Canada. These spills are useful in charting ocean currents but, except for wry Fortean content, are of little import to anomalists. However, there is one prediction of the computer models that is worth noting: Some of these bath toys may make it through the Bering Strait, across the Arctic Ocean, down past Greenland, and onto Atlantic shores. So, keep your eyes open at the beach! (Anonymous; "Rubber Ducky Armada Crosses Pacific," Science News, 146: 254, 1994. Carlton, Jim; "Tub Toys Are Ducky Ocean Researchers," Wall Street Journal, September 30, 1994. Cr. J. Covey) From Science Frontiers #97, JAN-FEB 1995 . 1995-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 112: Jul-Aug 1997 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology We've known it all along! Japanese mini-pyramids Astronomy A TWISTED COSMOS? Signals from the sun and, eventually (? ), other entities Biology You may become what you eat Dolphin refrigerators From the depths of the amazon Archea: tough and different Sea turtles: from one end to the other Geology Large rotating ice discs on ice-covered rivers The kind of fault you like to find Geophysics Icy minicomets caught by a satellite camera? Apparent circular lightning Pschedelic phenomenon Physics When like charges attract Cold-fusion pro-fusion Unclassified Computer con-fusion http://www.shakespeare.unduplicated ...
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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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... be man-made, or else nature is having a great joke on us. "Daniel Ruzo, a 90-year-old archa eologist who lives near Mexico City, aided us. The figures we saw and filmed in 1989 were both strange and fascinating. We were first greeted by a 60-foot rock called by Ruzo The Monument to Humanity because several different races are recognizable on it. They overlap each other in a unique way, but one can clearly discern a Caucasian youth, a Semitic man, a skull-like face that could be Negroid, and several others. "There are many other faces on the plateau, as well as animals. Some of the animals depicted never existed on the continent, such as the rhino, lion, camel, and a turtle-like creature." (Cote, Bill; "Marcahuasi--A Mystery in Stone," Louisiana Mounds Society News letter , no. 42, p. 1, October 1, 1991.) From Science Frontiers #78, NOV-DEC 1991 . 1991-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 98: Mar-Apr 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Some Shaky Observations Back in SF#65, we offered an item on how wood turtles stomp the ground to force earthworms out of their burrows. (When humans do this -- and they do -- it is called "grunting for worms!) Other animals also use vibrations for communication and, rather surprisingly, for cutting leaves. Malaysian tree frogs. Zoologists already knew that Puerto Rican white-lipped frogs use vibrations to communicate amongst themselves. The Malaysian tree frog can now be added to the list of substrate vibrators. The female will sit on a reed or small sapling and tap out a "come-hither" message with her toes. The message goes forth in minute seismic waves. The males detect these vibrations and proceed, sometimes in great numbers, to the source of the vibrations, and the species is thereby perpetuated. (Mestel, Rosie; "Courting Tree Frogs Make the Earth Move," New Scientist, p. 8, December 10, 1994.) Leaf-cutting ants. Leaf-cutting ants neatly excise penny-size pieces of leaves and tote them back to their fungus gardens. J. Tautz and colleagues, University of Wurtzburg, noted that the ants chirped as they sliced at the leaves with their jaws. With a little instrumentation, they discovered that during each chirp both ant and leaf vibrated at about 1,000 hertz. The vibration apparently rigidizes soft leaf tissues and ...
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... Jun 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Biological precursors of the 1995 kobe earthquake The Japanese are meticulous observers of animals. Many keep birds, insects, fish, etc. as pets. When scientists at the Osaka City University asked for reports of unusual animal behavior around the time of the great January 17 quake, over 1,200 people in the Kobe-Osaka area came forth with anecdotes. Some typical pre-quake observations were: Doves flying into walls. Caged birds (Chinese hawk-cuckoos) flying against the sides of their cages. Fish rising to the surface in great numbers. At the port of Shioya, "millions" of gizzard shad turned the surface of the water into silver. Captive stag beetles and turtles emerging from hibernation. And strangest of all, silkworms and fish in ponds orienting themselves in the same directions. (Minami, Shigehiko; "Creatures Went a Bit Batty, Maybe Knew Quake Was Coming," Asahi Evening News, February 25, 1995. Cr. N. Masuya) Cross reference. Many luminous phenomena were also seen. For descriptions of so-called "earthquake lights" refer to GLD8 in our catalog Lightning, Auroras, etc. It is listed here . From Science Frontiers #99, MAY-JUN 1995 . 1995-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 114: Nov-Dec 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue 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 ...
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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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