... Science Frontiers ONLINE No. 54: Nov-Dec 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Honest, this is the last "plant" item!In the September issue of Scientific American, S.C .H . Barrett presents an excellent review of mimicry in the plant world. All sorts of wondrous mimicry are described, involving form, color, odor, texture and even synchrony of life cycles. Plants mimic insects, stones, other plants, and substrates (backgrounds). Repeatedly, Barrett asserts that all of these remarkable developments are the consequence of small, randome mutations guided by the forces of natural selection. To Barrett, plant mimicry is proof positive that evolution is true. It should not surprise the readers of Science Frontiers that this very same article is a goldmine of biological anomalies, that is, data that seem to challenge ruling paradigms. (Barrett, Spencer C.H .; "Mimicry in Plants," Scientific American, 257:76, September 1987.) Comment. Evolution, like beauty, must be in the eye of the beholder! At this point, we could easily launch into a lengthy harangue about why it seems highly improbable that a plant, through chance mutations, could hit upon just the right combination of form, color, odor, and flowering time to dupe an insect pollinator -- even with the aid of natural selection and a billion years. The point we wish to stress here is that the author of this paper sees the same facts and comes to ...

... Science Frontiers ONLINE No. 16: Summer 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Plants Manufacture Fake Insect Eggs Plants are usually considered rather passive to environmental forces, but careful observation show that they fight back against predators in subtle ways. Williams and Gilbert, for example, have found that a number of Passiflora species, which are heavily defoliated by the larvae of Heliconius butterflies, have developed tiny structures that closely resemble in size, shape, and color the eggs of these butterflies. Heliconius butterflies, when searching for likely plants on which to lay eggs, tend to avoid plants that already have eggs on them. The plants' fake eggs, then, help protect the plant from predation. (Williams, Kathy S., and Gilbert, Lawrence E.; "Insects as Selective Agents on Plant Vegetative Morphology....."; Science, 212:467, 1981.) Comment. We have heard over and over again about Nature's "marvelous adaptations," but it is still difficult to imagine chance-driven evolution of fake eggs of just the right size, shape, and color. How many shapes and colors were tried before the plants got it right? From Science Frontiers #16, Summer 1981 . 1981-2000 William R. Corliss ...

... 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 Singing Caterpillars Actually, the singing caterpillars are not particularly tuneful. They really generate a vibration that is transmitted through the material they are resting on. You and I cannot hear caterpillar songs, but some ants can, and they are attracted to these insect sirens. The singing caterpillars belong to the Lycaenidae, which include such butterflies as the hairstreaks and blues. It is not only the singing or vibrating of this group of caterpillars that makes them remarkable, it is the complexity of their symbiotic relationships with several species of ants and a plant. Since both the ants and the caterpillars favor the Croton plant, they could well meet by chance, but the caterpillars' singing serves to accelerate contact. Once met on the Croton plant, a fascinating triangle is completed. Player 1. The Croton plant provides nourishment to the caterpillars through both its leaves and specially evolved nectaries (nectar-producing organs), but receives nothing in return. The ants also dote on the nectaries, but they at least protect the plant from all herbivorous insects except the singing caterpillars. Player 2. The ants get food from both the Croton plant and the caterpillars. The latter have evolved extrudable glands called "nectary organs." For their part of the bargain, the ants protect the caterpillar from predatory wasps, just as they defend the Croton plant from its enemies. Player 3. The caterpillars, though seemingly benign, are the heavies in this ...

... 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 Don't pet your house plants!Researchers at Stanford's Medical Center were spraying Arabidopsis plants (in the mustard family) with hormones to see if they could trigger any of the plants genes. They could, and the treated plants grew up stunted. But, it was serendipitously discovered, the same genes could also be triggered by spraying with water, by gusts of wind, and even by the human touch. Evident-ly, some of the genes in these plants can be turned on by various environmental stimuli, and thus affect future plant development. This mechanism per-haps explains why trees along the seacoast and timberline are stunted. (Crawford, Mark H., ed.; "Nolo Me Tangere," Science, 247:1036, 1990.) Comment. One is tempted to ask how widespread this phenomenon is in biology. Are humans, for example, born with a console of gene-buttons that the environment can push - as in cancer? Or, even in evolution itself? From Science Frontiers #69, MAY-JUN 1990 . 1990-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 9: Winter 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Ancient Dispersal Of Useful Plants George F. Carter, a noted geographer, summarizes the botanical evidence for early transoceanic voyages. Domestic cotton. Thousands of years old in the Americas; believed to be a hybrid between New World wild cotton and species from southwest Africa. Bottle gourds. Of African origin but known in Peru about 11,000 years ago; dispersible by ocean currents but appeared in Peru only after humans learned how to navigate on the oceans. Sweet potatoes. A New World plant that has been known in Polynesia for at least 500 years; but the South American name for the sweet potato (kumara) turns out to be a Sanskrit word from India, which is most perplexing. Coconuts. Arrived in the Americas from the Indian Ocean region via Polynesia; can be dispersed by ocean currents, but this long eastward voyage would have been counter to many currents. Peanuts. Well-established on the Peruvian coast thousands of years ago, but the same variety was known in preShang China before 1500 BC. (Carter, George F.; "Kilmer's Law: Plant Evidence of Early Voyages," Oceans, 12:8 , 1979.) Reference. Our Handbook Ancient Man contains much more evidence for Precolumbian contacts with the New World. Information on this large volume is located at: here . From Science Frontiers #9 , Winter 1979 . 1979-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 54: Nov-Dec 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Electric-power plants!Referring to a previous Science News item (132:53, 1987) on the electrostatic dispersal of fungal spores, A.F . Kah describes another use of electricity by plants: "In a similar manner, the same-charged fluffy fibers of milkweed (and presumably other fuzzy seeds) spring apart from electrostatic repulsion when the fibers have dried out. This explosive fiber spreading at the right moment is beautiful and fascinating to watch, and is certainly effective in getting them airborne!" (Kah, Ann F.; "Fluffy Explosion," Science News, 132:163, 1987.) Comment. See SF#30 for an item on heat production in plants. It must have been a serendipitous series of tiny random mutations that led to this electrostatic phenomenon. Of course, we can say the same for electric catfish, too. From Science Frontiers #54, NOV-DEC 1987 . 1987-2000 William R. Corliss ...

... 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 Eyeless Vision Tomatoes see red. And other colors, too! We touched on this subject over a decade ago. (SF#54) Then we described how the use of red plastic mulch greatly improves the yields of tomato plants. More recent research reveals that fruit quality and resistance to pests are also improved. How can this be? Plant leaves, it turns out, contain color sensors -- light-sensitive pigments similar to those it the human retina. Obviously, the plants do not "see," but the pigments provide environmental information. Here's the mechanism: plant leaves reflect infrared light well, so when a tomato plant's pigments detect a lot of infrared, the plant "thinks" that it may be crowded out by competing vegetation. The tomato plant responds aggressively by growing more rapidly. The red plastic mulch between the rows also reflects a lot of infrared light, and it thereby tricks the tomato plant into accelerating its growth. (Raloff, Janet; "When Tomatoes See Red," Science News, 152:376, 1997.) Fire-detecting beetles. The beetle Melanophila acuminata seeks out forests that have just been ravaged by fires so that it can lay its eggs in the nutritious, freshly burnt wood. These insects are capable of detecting fires up to 32 kilometers (20 miles) distant. They do not see the fire with their eyes but instead detect the ...

... 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 Fruit Dupe Hakea trifurcata is a forlorn-looking shrub growing on rocky terrain in Western Australia, where it reaches a height of 2 meters. The fruits of this plant are enjoyed by the white-tailed black cockatoo -- if it can identify them ! Hakea trifurcata , you see, grows fruit that looks like its leaves, and this is very frustrating to the white-tailed black cockatoo: "This shrub according to plant ecologist Byron Lamont of Curtin University of Technology in Perth, exhibits the first known case of self-mimicry in a plant: to avoid losing valuable seeds to predators, it disguises some of its leaves as fruits. Young plants produce only the long, needle-shaped leaves. But mature five-year-old shrubs also grow broad leaves that cluster around the slightly smaller, almost identical-looking green seed-filled fruits." When offered branches stripped of real leaves and bearing just fruits, the cockatoos quickly demolished them. Normal branches bearing both leaves and fruit were attacked at first -- especially the larger leaves. But when the cockatoos found themselves duped a large proportion of the time, they gave up in obvious frustration. (Anonymous; "Fruit Dupes," Discover, 15:16, August 1994.) Comment. An even more amazing case of plant mimicry occurs among Passiflora species, which craft precise copies of the eggs of a butterfly, whose larvae decimate these plants ...

... Science Frontiers ONLINE No. 25: Jan-Feb 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Promiscuous Dna The cells of plants (photosynthetic eukaryotes) are genetically the most complex that biologists have discovered. Each cell has three genetic systems: its own, that of the chloroplasts; and that of the mitochondria. It is supposed that the chloroplasts and mitochondria were once free-living cells that linked up with the embryonic plant cell to form a symbiotic partnership, with the host "plant" cell being the dominant member. Up until now, the three genetic systems were thought to be discrete, each going down its own pathway. But chloroplasts genes have now been found inside plant mitochondria, overturning conventional wisdom. To sum it all up, DNA seems promiscuous -- no respecter of privacy and breaking down all isolating genetic barriers. This discovery at once raises a dozen questions. For example, are mitochondria genes in chloroplast cells? How far does this promiscuity go? Can the same thing happen in higher organisms; say, with humans and symbiotic microorganisms or even not-so-symbiotic disease organisms? Is there no stopping this DNA? (Ellis, John; "Promiscuous DNA -- Chloroplast Genes inside Plant Mitochondria," Nature, 299:678, 1982.) From Science Frontiers #25, JAN-FEB 1983 . 1983-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 125: Sep-Oct 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Pre-Columbiana Pre-Columbiana is the title of a new journal focussing upon evidence for preColumbian contacts between the Old and New Worlds. Except for the Norse settlement at L'Anse aux Meadows, Newfoundland, such early visitations are denied by mainstream archeology. Yet, there are hints everywhere that both the Atlantic and Pacific were crossed frequently before Columbus set sail. One class of pre-Columbiana consists of linguistic, artistic, literary, and fossil evidence that distinctive New World plants were known in the Orient well before 1492. C.L . Johannessen, a geographer at the University of Oregon, demonstrates in a long article that both India and China knew and exploited a surprisingly wide range of American plants. For example, many carvings in Indian temples depict maize, which originated in the New World. A similar situation prevails for the sunflower and a many-seeded New World fruit called "annonas." Sunflowers and maize are also prodigious seed producers, suggesting that these three plants were valued as fertility symbols and may not have been consumed as food. The pre-Columbian Pacific was a twoway conduit for plants and even a few animals. For example, the Old World contributed black-boned chickens, cotton, and coconuts to the New World. As for China, Johannessen has gathered evidence for early Chinadestined Pacific crossings of maize, sunflowers, a squash, chili peppers, sweet potatoes, the yambean, and grain ...

... 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 Killer Bamboos There are more than 500 species of bamboo. Together, they have conspired - in a vegetative way - to exterminate the pandas. Why pick on such a cute, lovable animal? Pandas, you see, eat nothing but bamboos; and the bamboos have had enough! The bamboos' strategy is to flower only once in a lifetime. When the appointed time arrives for each species, all plants of the species all over the world flower simultaneously. The various species flower at intervals of 15, 30, 60, or 120 years. (These 15-year multiples and the unknown clocks that determine them are anomalies in themselves.) After a species flowers, all plants die, leaving the fate of the species to a thick carpet of seeds. Until the next flowering, it will extend its domain via vegetative reproduction only. Ten years will pass before the bamboos have grown enough to be a viable pan-da food source. The pandas' only hope is to find a species of bamboo that did not flower. It is hard to think of a plant as malevolent, but here is how P. Shipman describes the situation: "Green and slender, deceptively innocent-looking, it spreads out slowly, year by year, until it has its victims surrounded. Meanwhile the pandas, poor patsies, are eating out of the bamboo's hand. Only when the pandas are well and truly ...

... Science Frontiers ONLINE No. 128: MAR-APR 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Archeometeorology (Top) Even with hazy viewing, the six brightest Pleiads are usually visible. (Bottom) With good seeing more of the stars come into view. Ancient farmers the world over counted off the seasons and fixed planting times by watching the stars and the sun. But the stars can also help forecast the weather, even though they have no influence over it. We'll call this unique sort of archeoastronomy: "archeometeorology." Farmer-astronomers in the drought-prone regions of the Andes learned how, after what must have been centuries of sky-watching, to wring rainfall predictions from observations of the Pleiades. This information allowed them to better time the planting of potatoes -- their most important crop. The astronomical phenomenon they employed is far from obvious. The Pleiades are a cluster of bright stars in the constellation Taurus. The visibility of these stars varies slightly depending upon the amount of subvisual cirrus. If the Pleiades were dull in the month of June, the Andean farmers knew from experience that an El Nino was on the way. This betokened reduced rainfall and told them to postpone the planting of their potatoes by 4-6 weeks for best yields. The critical observations were made between June 13 and 24, when the Pleiades shine brightly just before dawn over the northeastern horizon. At this low angle, the presence of the subvisual cirrus has an obvious effect on the brightness of the stars ...

... Science Frontiers ONLINE No. 1: September 1977 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Australian Mistletoes Mimic Their Hosts Many species of Australian mistletoes closely mimic their hosts in leaf form and general appearance, blending deceptively into the host's foliage. Plant mimicry for purposes of protection (for example, stone plants) and for propagation are well known and, in the logic of evolutionists, have evolved because of the advantages conferred on the species. Since the Australian mistletoes are evidently highly palatable to arboreal marsupials, the tenets of evolution hold that it is only natural that these mistletoes should develop so as to resemble their hosts for purposes of protection. This is called cryptic or camouflage mimicry. Australian mistletoes parasitize a wide variety of plants, and it is truly marvelous how they can detect and imitate the leaves and appearances of such a wide variety of hosts. (Barlow, Bryan, and Wiens, Deibert; "Host Parasite Resemblance in Australian Mistletoes," Evolution, 31:69, 1977.) From Science Frontiers #1 , September 1977 . 1977-2000 William R. Corliss ...

... chapter appearing in a new book. The chapter is 58 pages long, with 176 references, making it a major contribution to the subject. To give the reader the flavor of this paper, two paragraphs are now reproduced: "The data presented in this chapter should, once and for all, topple the dualistic dichotomy between mind and body which has strongly dominated Western thought since Descartes. The meanings or ideas imbedded in words which are spoken by one person and deeply accepted by another can be communicated to the cells of the body (and to chemicals within the cells); the cells then can change their activities in order to conform to the meanings or ideas which have been transmitted to them. The believed-in (suggested) idea of being stimulated by a poison ivy-type plant, transmitted to a person who is normally hypersensitive to this type of plant, can affect specific cells (probably in the immunological and vascular systems) so that they produce the same type of dermatitis which results when the person actually is stimulated by a poison ivy-type plant. Similarly, individuals who are viewed as allergic to pollen or house dust may not manifest the allergic reaction when they believe (falsely) that they have not been exposed to the allergic substance. .. .. . "Believed-in suggestions can affect specific parts of the body in very specific ways. Suggestions of being burned can give rise to a very specific irregular pattern of inflammation on the hand that closely follows the pattern of a previously experienced actual burn in the same place. Suggestions that a congenital ...

... Science Frontiers ONLINE No. 131: SEP-OCT 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Green Misconceptions More trees are better for the environment . The Kyoto protocol recommends that we should all plant more trees, because trees help remove carbon dioxide from the atmosphere. CO2 is a green-house gas, and its reduction should slow global warming. At least, this is how the Kyoto logic went. More trees may be good for the environment in the tropics, but the reverse is true in lands that are covered with snow most of the year. This is be-cause snow reflects much of the impinging solar energy back into space. If these northern lands were heavily forested, much of the solar energy would be absorbed and converted into heat. Climate-modellers confirm that sunlight-reflecting snow is better for the environment than trees. (Anonymous; "Reflect on It," New Scientist, p. 19, May 13, 2000.) Hydroelectric power is clean . Although widely proclaimed to be among the cleanest energy sources available, some hydroelectric powerplants actually con-tribute more greenhouse gases than large coal-fired plants! Submerged vegetation is the problem. When it decays, it releases greenhouse gases---in quantity. The forests first submerged by the reservoirs behind the dams contribute gases for only a few years. Most of the troublesome biomass is fed into the reservoirs from upstream. Compounding the problem are the vast areas of stagnant water behind many hydroelectric dams. There, in the absence of ...

... BBT10 Sensitivity to Impending Weather and Earthquakes BBT11 Possible Unrecognized Senses BBT12 Remarkable Feats of Flight BBT13 The Origin of Avian Flight BBT14 Unanswered Questions Concerning Flightlessness BBT15 Some Curiosities of Avian Flight BBT16 Deep-Diving Capabilities BBT17 Vocal Mimicry in Birds BBT18 Birds That Vocally Mimic Only in Captivity BBT19 Vocal Mimicry of Hosts by Parasitic Species BBT20 Duetting BBT21 Chorusing BBT22 Large Vocal-Repertoire Sizes and High Speeds of Delivery BBT23 Female Singers BBT24 Whisper Songs and Subsongs BBT25 The Two-Voice Phenomenon BBT26 Some Curiosities of Avian Vocalizations BBT27 Incubator Nests BBT28 Woven and Sewn Nests BBT29 Nests Containing Protective Materials BBT30 Bowers BBT31 Nest Curiosities BBT32 Tool Use BBT33 Communication between Chick Embryos BBX AVIAN INTERFACE PHENOMENA BBX1 Unusual Attacks on Humans BBX2 Unusual Predators of Birds BBX3 Unusual Bird-Animal Psychological Interfaces BBX4 Curious Associations of Birds with Other Animals and Plants BC BIOCHEMISTRY Titles not yet posted BF FISH Titles not yet posted BG GENETICS Titles not yet posted BH HUMANS BHA EXTERNAL APPEARANCE AND MORPHOLOGY BHA1 Human Asymmetry BHA2 The Appearance of Beauty in the Human Lineage BHA3 General Physique Correlated with the Month of Birth BHA4 Human Body Badly Designed for Swimming BHA5 The Apparent Physical Degeneration of Humans BHA6 Human Physical Degeneration and Genius BHA7 Variability of External Appearance BHA8 Discordances in the Appearances of Identical Twins BHA9 Mirror-Image Twins BHA10 The Apparent Primitive Character of Some Features of the Human Body BHA11 Human and Orang-Utan Physiological Similarities BHA12 Significant Morphological Differences between Humans and the Great Apes BHA13 Sports, Monsters, Terata BHA14 Two Separate Populations of Pygmies BHA15 Birth Weight Varies with Month of Birth BHA16 Human Sexual Dimorphism BHA17 Sex-Ratio Variations BHA18 Gradations between Male and Female ...

... 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 ...

... Science Frontiers ONLINE No. 35: Sep-Oct 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Gravity And Going Around In Ellipses We thought that our readers might like to know that the force of gravity apparently has no significant effect on circumnutation. Now circumnutation is the result of an "impressively ubiquitous mechanism" in all elongating plant organs. More simply, it is the elliptical weaving motion seen in the tips of growing leaves, shoots, flower stalks, branch roots, etc. In a 4- to 5-day-old sunflower seedling, the ellipse traced is 6-8 millimeters long and takes about 110 minutes. The ellipses result from differ-ential growth in the elongating plants. No one knew whether the force of gravity played a role in circumnutation until some sunflower seedlings were flown on Spacelab 1. Zero-g did not affect circumnutation at all. (Brown, Allan H. and Chapman, David K.; "Circumnutation Observed without Significant Gravitational Force in Spaceflight," Science, 225:230, 1984.) Comment. Nature seldom indulges in frivolous actions, but we just may have a phenomenon here that has absolutely no deeper significance. From Science Frontiers #35, SEP-OCT 1984 . 1984-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 111: May-Jun 1997 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Malleable Memories The ease with which psychologists can plant false memories in the minds of their subjects -- even savvy college students -- casts clouds over several anomalous phenomena, such as UFO abductions, ball lightning, and sea-monster sightings. Even scientists can be deluded into believing they have seen things in their laboratories. (Remember Blondlot's experiments with N-rays and the several physicists who confirmed his results?) Not that psychologists go around intentionally implanting memories of dubious phenomena. All it takes are suggestion, expectation, and/or paradigm-passion. At a 1997 meeting of the American Association for the Advancement of Science, several psychologists told of their "malleable-memory" experiments. H.L . Roediger III, Washington University, asked students: ". .. to look at a list of 15 words that included 'bed,' 'dream,' 'blanket,' 'doze,' and 'pillow.' Just over half said afterward that the word 'sleep' had been on the list, even though it wasn't ." E. Loftus, University of Washington, first asked a group of parents to describe some events that their children -- all now adults -- had experienced. Then, she went to the children and: ". .. walked them through a series of real incidents [mentioned by their parents] and then threw in a fake ...

... pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Where did agriculture really begin?The archeological party line points to the banks of the Tigris and Euphrates rivers. There, the authorities say that, about 10,000 years ago, humans suddenly learned how to sow and harvest such crops as wheat and barley. There, civilization really began. Or was it there? Wadi Kubbaniya, Egypt. At this site, G. Hillman, of the Institute of Archeology, London, has found grinding stones and tubers. This site is dated at 17,000-18,000 years old. New Guinea highlands. J. Golson, formerly of the Australian National University, has found ditches and crude fields in this area. The implication is that humans were tending plants here between 7,000 and 10,000 years ago. Buka Island, Solomons. While excavating Kilu cave, M. Spriggs and S. Wickler unearthed small flake tools with surfaces displaying starch grains and other plant residues. Evidently, these tools were used for processing taro. Further, the starch grains resembled those of cultivated rather than wild taro. Date: about 28,000 years ago. (Dayton, Leigh; "Pacific Islanders Were World's First Farmers," New Scientist, p. 14, December 12, 1992.) From Science Frontiers #86, MAR-APR 1993 . 1993-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 41: Sep-Oct 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Genetic Garrulousness It is tempting to predict that those cells with the most genetic material will belong to the most advanced organisms. One would, for example, expect to find more DNA or nucleotide pairs in human cells than the cells of bacteria or plants. In the case of the bacteria, this expectation is realized. Some plants, however, have one hundred times more DNA per cell than humans. Some fish and salamanders do, too. One reason why there is no simple relationship between a cell's genetic complement and the organism's complexity is that a lot of genetic material is apparently useless, with no known functions. Human genes, by way of illustration, possess about 300,000 copies of a short sequence called Alu. The Alu sequences seem to be simply dead weight -- functionless -- yet continuously reproduced along with useful sequences. One purposeless mouse gene sequence is repeated a million times in each cell. (Stebbins, G. Ledyard, and Ayala, Francisco J.; "The Evolution of Darwinism," Scientific American, 253:72, July 1985.) Comment. Why so much redundance? Or is there some purpose for this excess genetic material that we haven't yet descried? The "useless" sequences may merely be left over from ancient gene shufflings; or they may be awaiting future calls to action. The above tidbits come from a long review article that is ...

... evolutionary development. They permit the geographical dispersal of many species, especially insects. But nature, ever-innovative, has other aeronautical techniques up her sleeve. Consider the tiniest insects that do not possess wings. It is difficult for large animals like ourselves to realize that these tiny creatures are actually prisoners of the so-called "boundary layer" of air hugging all surfaces. The thin boundary layer is stagnant very close to the surface. Any tiny in-sect wishing to take advantage of wind-dispersal to propagate the species farther afield must somehow breach this layer. Some of the scale insects have in their instar phases developed the trick of rearing up on their hind legs, penetrating the boundary layer, and presenting a high-drag surface to the wind. (Many climb along plant surfaces inside the boundary layer to exposed areas before exhibiting this behavior.) The wind plucks them off the plant and carries them off to new territories. The authors think this may be convergent evolutionary strategy for many minute insects. (Washburn, Jan O., and Washburn, Libe; "Active Aerial Dispersal of Minute Wingless Arthropods.....," Science, 223:1088, 1984.) Comment. The fact that these insects are shaped like airfoils (i .e ., aircraft wings) is also interesting. Scale insects (first instar phase). A. In the slow-moving boundary layer. B. Rearing through the boundary layer to present a high-drag cross section to the wind. From Science Frontiers #33, MAY-JUN ...

... 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 ...

... Science Frontiers ONLINE No. 7: June 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Where did chief joseph get a cuniform tablet?Among the effects of Chief Joseph, the famed leader of the Nez Perce Indians, was a clay tablet bearing a cuneiform inscription. The tablet transmits no startling message, being merely a receipt for one lamb changing hands. But where did a Northwest Indian chief get a 3,000year-old tablet? The tablet first came to light around 1878, long before cuneiform tablets became common on the artifacts market. Still, it could have been a gift from some missionary or tourist -- or even planted as a hoax. (Park, Edwards; "Where Did Chief Joseph Get a Cuneiform Tablet?" Smithsonian Magazine, 9:36, February 1979.) Reference. For other enigmatic New World tablets and inscriptions, read our Handbook: Ancient Man, which is described at: here . From Science Frontiers #7 , June 1979 . 1979-2000 William R. Corliss ...

... Science Frontiers ONLINE No. 12: Fall 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The earth's ring The most profound climatic event of the Tertiary was the terminal Eocene event 34 million years ago. The sudden change in the abundance of forest plants suggests that the winters became much more severe while the summers remained about the same. At about the same time, the radiolaria were devastated by some sort of disaster. This was also the time when the North American tektite strewn field was deposited -- a field that stretches halfway around the world. John O'Keefe hypothesizes that some of the tektites and microtektites that rained down during this period missed the earth and went into orbit around it, forming an opaque Saturn-like ring. This ring might have lasted a million years or more; and its shadow could have caused the extrasevere winters postulated from botanical data. (O 'Keefe, John A.; "The Terminal Eocene Event; Formation of a Ring System around the Earth," Nature, 285:309, 1980.) Comment. Many who have previously speculated about terrestrial ring systems, such as I.N . Vail, were called pseudoscientists! Reference. The North American tektites are the subject of Section ESM3 in our Neglected Geological Anomalies. Ordering information here . Earth's ring shadow From Science Frontiers #12, Fall 1980 . 1980-2000 William R. Corliss ...