508 results found.
... Subjects The failure of two-dimensional life The fossil record tells us that just prior to the Cambrian explosion of life, the earth was populated by a diverse assemblage of soft-bodied, shallow-water marine invertebrates, some with dimensions as large as 1 meter. This whole group of animals did not survive into Cambrian times, thus ending what has been termed The Ediacaran Experiment. Some paleontologists have tried to find similarities between the Ediacaran and Cambrian life forms to preserve the continuity of life. This has proved difficult, and some scientists now feel that The Edicaran approach to "largeness" was to increase surface area externally. The Ediacarans were therefore shaped like pancakes, tapes, fans, etc. This enabled them to present large areas to the environment for respiration, feeding, and other biological functions. In contrast, many present life forms achieve "largeness" by increasing internal areas, as in the lungs, folded intestines, etc., along with the forced circulation of air, blood, and other sub stances. This latter approach survived, while the two-dimensional Ediacaran Experiment did not. The demise or extintcion of the Ediacarans led Gould, the author of this far-ranging article, to the influence of extinctions on life in general -- a hot topic these days. Gould stated that with natural selection operating, one would expect continual "improvement" in life forms, but that this had not happened. "I regard the failure to find a clear 'vector of progress' in life's history as the most puzzling fact of the fossil record ...
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... Science Frontiers ONLINE No. 26: Mar-Apr 1983 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Punching A Hole In The Asteroid Hypothesis Scientists have long searched for a cause for the profound geological and biological changes that apparently occurred between the Cretaceous and Tertiary periods. When an iridium-rich layer was found in several areas at this important boundary, many claimed it as proof of an asteroid impact or some other catastrophism that would nicely explain the massive worldwide changes that occurred. With this preamble in mind, consider the following abstract from an article in Science: "Analyses of the clay mineralogy of samples from the Cretaceous-Tertiary boundary layer at four localities show that the boundary clay is neither mineralogically exotic nor distinct from locally derived clays above and below the boundary. The significant ejecta component in the clay that is predicted by the asteroid impact scenario was not detected." (Rampino, Michael R., and Reynolds, Robert C.; "Clay Mineralogy of the Cretaceous-Tertiary Boundary Clay," Science, 219:1983.) From Science Frontiers #26, MAR-APR 1983 . 1983-2000 William R. Corliss ...
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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 Evolution By Numbers The following paragraph is taken from a letter to Nature by a "practising geneticist." "In the discussion in your columns about the application of quantitative methodology based on the study of evolutionary processes to the analysis of the development of human culture, there is an unquestioned assumption on both sides of that issue that quantitative theory, as expounded by practitioners such as Fisher, Haldane, Wright, Cavalli-Sforza and Maynard Smith, has been successful in illuminating and explaining the process of biological evolution and the genetic relationships between species. As far as I know, there is no evidence to support this assumption. Indeed, there is a vast number of observations unaccounted for in the extant quantitative evolutionary theories. Many of these observations (inducible mutation systems, rapid genomic changes involving mobile genetic elements, programmed changes in chromosome structure) challenge the most fundamental assumptions which these evolutionary theories make about the mechanisms of hereditary variation and the fixation of genetic differences." (Shapiro, James A.; "Evolution by Numbers," Nature, 303:196, 1983.) Comments. The "observations unaccounted for" are buried in such obscure journals as S.B . ges. Morph. Physio. (Munchen). It is pretty obvious that the Sourcebook Project is just scratching the surface. From Science Frontiers #28, JUL-AUG 1983 . 1983-2000 William R. Corliss ...
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... 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 a few lines in a cladogram may seem trivial to the nonbiologist, but saying that man is more closely related to a chicken than a lizard is pretty controversial ...
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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 The Case Against Impact Extinctions The neocatastrophists seem to be getting overly smug with their iridium-rich deposits at the Cretaceous-Tertiary boundary. Is there really incontrovertible evidence that a large asteroid or comet hit the earth at this point in history, causing widespread biological extinctions? To add some perspective, Leigh M. Van Valen has tossed 15 arguments against impact extinctions on the scales. Ten of these are reproduced below, as taken from Nature. More de-tails may be found in Paleobiology, 10: 121, 1984. Freshwater life was unaffected; In Montana and its vicinity, the last occurrence of dinosaurs was detectably below the crucial boundary; Transitional floras also exist below the boundary; Apparently extraterrestrial material exists below the boundary; The expected effects of eliminating atmospheric ozone are missing; The Cretaceous-Tertiary boundary is coincident with a very large marine regression, suggesting a nonextraterrestrial cause; Marsupials but not placentals were nearly eliminated, while most aboreal multituberculates (a type of vertebrate) and birds survived; The predicted cooling effects on the earth are absent; The predicted effects of acid rain cannot be found; and Assuming a marine impact, no turbidites can be found; assuming a land impact, no large terrestrial crater has been discovered. (Van Valen, Leigh M.; "The Case against Impact Extinctions," Nature, 311:17, 1984.) From Science Frontiers #36, NOV-DEC 1984 . ...
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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 Evolution Of Man And Malaria Malarial parasites are customarily classified according to the species infected and then further subdivided by morphology and biological characteristics. The two assumptions implicit in this classification procedure, which is supposed to mirror actual historical evolution, are: Malarial parasites evolved in parallel with their hosts; and Morphology is a measure of evolutionary relatedness. With modern biochemical techniques it is possible to test these assumptions by comparing the DNA structures of the different malarial parasites. P. falcipa rum, the parasite transmitting the most deadly human malaria, turns out to be more closely related to rodent and avian malaria than the other primate malarias. Therefore, assumption #1 above is in correct in this view. Assumption #2 is also wrong because some species of malaria parasites which are very similar morphologically are quite different DNAwise. (McCutchan, Thomas F., et al; "Evolutionary Relatedness of Plasmodium Species as Determined by the Structure of DNA," Science, 225:808, 1984.) Comment. The article does not draw attention to still another assumption; namely, that similarities are measures of evolutionary relatedness. If this as sumption isn't correct, evolutionary family trees based on bodily structure, which means most of the family trees in the textbooks, may not truly reflect what really happened in the development of life. Further, if malarial parasites did evolve along with their hosts, hu man evolution seems farther removed from the evolution ...
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... Science Frontiers ONLINE No. 31: Jan-Feb 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Rise Of Astronomical Catastrophism After being ridiculed for well over a century, astronomical catastrophism is now coming into its own. First, there was the admission that a few small craters, like Meteor Crater in Arizona, just might be of meteoric origin; then, more and bigger craters (astroblemes) were recognized; and, recently, the discovery of the iridium-rich layer at the Cretaceious-Tertiary boundary has made the subject very popular, as evidenced by the following three items: A long, very thorough and scientific review of geological and biological changes caused by meteor strikes throughout the earth's history. (McLaren, Digby J.; "Bolides and Biostratigraphy," Geological Society of America, Bulletin, 94:313, 1983.) A shorter, popular version of the above. (McLaren, Digby; "Impacts That Changed the Course of Evolution," New Scientist, 100:588, 1983.) Evidence is growing that the collision of planetary material with the Earth can profoundly affect local geology, and that impacts of very large meteorites may have influenced the evolution of the Earth and the life that exists upon it. This quotation is from the lead-in to the article references below, which also has a nice world map of major impact sites over 1 km in diameter. (Grieve, Richard; "Impact Craters Shape Planet Surfaces," New Scientist, 100:516, 1983 ...
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... of salt management. Humans are also the only primates to regulate body temperature by sweat-cooling, a system profligate in the use of sodium. Proponents of the Aquatic Ape Hypothesis believe that sweat-cooling could not have developed anywhere except near the sea where diets contain considerable salt, in fact much more salt than the body requires. This article also deals with certain skeletal features of early man that seem to indicate an aquatic stage. For example, the Lucy skeleton has a shoulder joint that indicates that Lucy spent a lot of time with her hands above her head, as she would have if aquatic or treeswinging! (Morgan, Elaine; "The Aquattic Hypothesis," New Scientist, p. 11, April 12, 1984.) Reference. Many phenomena presented in our Catalog Biological Anomalies: Humans I are favorable to the Aquatic Ape Hypothesis. This book is described here . Hair tracts on a human foetus that seem to indicate water-flow patterns (From Incredible Life). From Science Frontiers #34, JUL-AUG 1984 . 1984-2000 William R. Corliss ...
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... of the data account for much of the so-called scientific evidence. While it is not possible to prove definitely that the monster does not exist, the evidence so far advanced strongly suggests that the Loch Ness monster is nothing more than a long-lived and extremely entertaining legend." The "Academy" mentioned above is the Academy of Applied Science. This article reproduced both the original JPL computer-enhanced photo of the famed flipper and the photo that was widely published. The "retouching" seems extensive. (Razdan, Rikki, and Kielar, Alan; "Sonar and Photographic Searches for the Loch Ness Monster: A Reassessment," Skeptical Inquirer, 9:147, 1984.) Reference. Some sea serpents may be mammals. These are cataloged in Chapter BMU in our Biological Anomalies: Mam mals II. A description of this book may be found here . From Science Frontiers #38, MAR-APR 1985 . 1985-2000 William R. Corliss ...
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... 1984, Alan Walker, from Johns Hopkins, discovered near Lake Turkana, in Kenya, most of the skeleton of a 12year-old boy, which is estimated to be 1.6 million years old. Classified as a specimen of Homo erectus, the boy was 5 feet 5 inches tall and would probably have grown to 6 feet at maturity. Until this find, our supposed ancestors were generally thought to be small and puny; but here is a strapping fellow, looking much like a modern human, although his skull and jawbone resemble those of a Neanderthal. (Joyce, Christoper; "Now Pekin Man Turns Up in Kenya," New Scientist, p.8 , October 25, 1984.) Reference. Anomalies in the hominid fossil record are cataloged in Chapter BHE in Biological Anomalies: Humans III. Details on this book here . From Science Frontiers #37, JAN-FEB 1985 . 1985-2000 William R. Corliss ...
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... deficiency by generating echo-locating pulses at three distinct harmonics: 30, 60, and 90 kilohertz. Its external ears are so shaped that each of these three frequencies has a different acoustic axis, giving the bat in effect three separate sets of ears pointing in three different directions. Inside the bat's head, in the inferior colliculus of the brain, are three sepa rate sets of neurons sensitive to the three different frequencies. No one knows how the bat processes such information into a "display" it can use in swooping after insects at night. (Anonymous; "The Ins and Outs of a Bat's Ears," New Scientist, 20, August 30, 1984.) Reference. For more on bat navigational prowess, see section BMT3 in our catalog: Biological Anomalies: Mammals II. This volume is described here . The three acoustic axes of the moustache bat. From Science Frontiers #36, NOV-DEC 1984 . 1984-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 34: Jul-Aug 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Behind magnetic flip-flops The earth's magnetic field frequently reverses its polarity. Such flips can of-ten be correlated with climate changes, global ice volumes, sea-floor spreading rates, and deposition of black shales, tektite falls, biological extinctions, etc. The frustrating thing is the lack of clear-cut cause and effect; that is, how these phenomena are linked physically to the geomagnetic field. Part of the problem is that we can only guess at how the geomagnetic field is generated. Let us assume that the earth's magnetic field is created by dynamo action in the planet's fluid core. P. Olson finds analytically that the core dynamo may reverse sign due to fluctuations in core turbulence caused by two competing energy sources: heat loss at the mantle-core boundary and progressive growth of the inner core. In concept, the heat lost at the core-mantle boundary might be linked to climate changes and sea-floor spreading. Taking a different tack, D. Gubbins has investigated the possibility that field reversals are triggered by ice ages and meteorite impacts (tektite falls). The physical mechanism here would be the increase in pressure upon the core, which affects the rate of freezing in the outer core, and thus the power available to the core dynamo. Gubbins found that these externally caused pressure changes were too small to explain the polarity changes. However, the parameters involved ...
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... the New Zealanders turned them around and tried to guide them to deeper waters. Sometimes refloated cetaceans just turn around and reground themselves again, but this time the pilot whales were fortunate. A school of dolphins fishing offshore somehow apprehended the situation and swam into the shallows around the pilot whales. The dolphins then guided them out to sea. 76 of the pilot whales were thus saved. In a similar incident 5 years earlier at Whangarei harbor, a helicopter followed the dolphins and whales several miles out to sea, confirming interspecies aid. Such stories are reminiscent of those where drowning humans are helped by dolphins. (Anonymous; "Dolphin Pilots," Oceans, 17:50, 1984.) Reference. More instances where dolphins have come to the aid of humans are presented in BHX3 in Biological Anomalies: Humans III. Ordering information is located here . From Science Frontiers #35, SEP-OCT 1984 . 1984-2000 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 Non-lethal tektites It is the fashion these days to blame the many so-called "extinctions" prevalent in the fossil record on extraterrestrial cataclysms. Some deposits of tektites and microtektites have indeed been correlated with the disappearances of some species. Since tektites are supposedly formed during meteor collisions with the earth, many scientists thought the evidence, circumstantial though it may be, very convincing. What has not been publicized as well is the fact that many microtektites, particularly in sediments 30-40 million years old, have no correlations whatsoever with any important biological extinctions. (Anonymous; "Non-lethal Tektites," New Scientist, 99:345, 1983.) Reference. The many paradoxes and anomalies associated with tektites are cataloged at ESM3 in: Neglected Geological Anomalies. Information on this book may be found here . From Science Frontiers #30, NOV-DEC 1983 . 1983-2000 William R. Corliss ...
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... global warming. Temperature gradients, and thus density gradients, from pole to equator decrease in surface waters, and the deep ocean currents of oxygenated polar waters wane. Oxygen minimum zones intensify and widen; anoxic conditions throughout entire basins are indicated by black shales deposited in the deep sea. These relations thus suggest that the earth's interior processes and its climates are related and their status recorded by both magnetic polarity and anoxic event chronologies of the earth." (Force, Eric R.; "A Relation among Geomagnetic Reversals, Seafloor Spreading Rate, Paleoclimate, and Black Shales," Eos, 65:18, 1984.) Comment. But what stopped and restarted the magnetic reversals and other concurrent processes? Strangely enough, the quiet, anoxic periods do not seem to coincide with biological extinctions! From Science Frontiers #32, MAR-APR 1984 . 1984-2000 William R. Corliss ...
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... false pregnancies in females have been reported, but only 3 in males. A fourth has now come to light. It is the story of a 40-year-old, married man, who wished to have another child but his wife didn't . Subsequently, the man's abdomen began to protrude and his weight increased by 20 pounds. Symptoms similar to those of morning sickness also developed. The condition eventually subsided as he and his wife "talked out" their disagreement. The man had a previous history of depression and schizophrenia. (Evans, Dwight Landis; "Pseudocyesis in the Male," Journal of Nervous and Mental Disease, 172:37, 1984.) Reference. An interesting allied subject is "male lactation." See BMF12 in our Catalog: Biological Anomalies: Mammals II. This book is described here . From Science Frontiers #32, MAR-APR 1984 . 1984-2000 William R. Corliss ...
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... " are hot items in Coral Gables these days. Fox and his colleagues make microspheres by preparing a heated stew of various amino acids. These amino acids form long polymer chains spontaneously. Then, when water is added and the mixture reheated (or processed in some other way), the polymers organize themselves, again spontaneously, into spheres a few microns in diameter. Each sphere consists of a two-layer membrane with residual material trapped inside. Although thicker, the microsphere membrane is very similar to the lipid bi-layer enclosing normal living cells. The relatively stable microspheres could, in theory, have formed sheltered environments for the evolution of the more complicated parts of living cells. The microspheres absorb sunlight and, with the addition of this energy, display some of the electrical characteristics of biological neurons, like those in the brain. The implication is that some components of "mind" may have existed in the very earliest life forms. (Peterson, Ivars; "Microsphere Excitement," Science News, 125:408, 1984.) Comment. Two comments here: First, the word "spontaneous" is customarily employed when describing how atoms unite to form molecules and molecules combine into polymers, which then gather into microspheres. The word "spontaneous" seems to imply chance is operating rather than design. Actually, atoms and even subatomic particles must have innate properties which force them to combine into larger structures the way they do. Philosophically, one can ask whether the lowliest subatomic particles are "coded" to combine into molecules, microspheres, and living creatures. In ...
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... 350 C water streams from the deep-sea vents. In the lab, these same bacteria multiply rapidly in water at 250 C kept liquid by pressures of 265 atmospheres of pressure. What a surprise! Quoting a concluding sentence from this article: "This greatly increases the number of environments and conditions both on Earth and elsewhere in the Universe where life can exist." (Baross, John A., and Deming, Jody W.; "Growth of 'Black Smoker' Bacteria at Temperatures of at Least 250 C," Nature, 303:423, 1983.) Comment. Ignoring for the moment the extraterrestrial possibilities, the earth is riddled like a Swiss cheese with hot, fluid environments, which we may now consider potential abodes of life. Subterranean life represents a new biological frontier. Who knows what kinds of organisms have developed to feed upon the planet's heat? Could they have con-tributed to our supplies of petroleum and natural gas? From Science Frontiers #29, SEP-OCT 1983 . 1983-2000 William R. Corliss ...
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... . Current theories of hearing, according to Hugo Zuccarelli, cannot explain this human capability, which we all take for granted. He has come up with a new theory that pictures our ears as truly remarkable organs. First, our ear itself is a sound emitter. It emits a reference sound that combines with incoming sound to form an interference pattern inside the ear. The nature of this pattern is sensitive to the direction of the incoming sound. Our ear's cochlea detects and analyzes this pattern as if it were an acoustic hologram. The brain then interprets this data and infers the direction of the sound. (Zuccarelli, Hugo; "Ears Hear by Making Sounds," New Scientist, 100:438, 1983.) Comment. We have been able to appreciate this slick biological trick only after we "discovered" holograms. We should wonder if we are missing anything else! Two letters quickly appeared casting doubt on not only Zuccarelli's Theory but his personal scientific capabilities. (Baxter, A.J ., and Kemp, David T.; "Zuccarelli's Theory," New Scientist, 100:606, 1983.) From Science Frontiers #31, JAN-FEB 1984 . 1984-2000 William R. Corliss ...
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... During October and November 1983, several sightings of a dark, eel-like creature came from the California coast. (Stinson Beach, north of San Francisco, and Costa Mesa). Three humps (just like in the classic sea serpents on old maps) followed a small head, which rose above the surface to look around. Many individuals saw the serpent, some with binoculars. At Stinson Beach, the animals was followed by about 100 birds and two dozen sea lions. (Anonymous; "' Sea Serpents' Seen off California Coast," International Society of Cryptozoology Newsletter, 2:9 , Winter 1983.) Comment. Of the vertebrates, only mammals are built so that they can easily flex vertically. Reference. We catalog mammalian "sea serpents" under BMU in Biological Anomalies: Mammals II. For more information on this book, visit: here . From Science Frontiers #33, MAY-JUN 1984 . 1984-2000 William R. Corliss ...
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... SF#27 are not discussed at all in the article referenced below. A post- Columbian date was suggested on the basis that implements and a dog's skeleton were also found with the Guadeloupe skeleton. The whole business has split the ranks of British scientific creationists. (Howgate, Michael, and Lewis, Alan; "The Case of Miocene Man," New Scientist, p. 44, March 29, 1984.) Comment. the "facts" presented in the New Scientist and Ex Nihilo are so discordant that we await further developments with great interest and some amusement. Beach rock forms quite rapidly; and the skeleton could be very recent, despite the claims made in Ex Nihilo. Reference. The subject of the Guadeloupe skeleton is developed more completely in our Catalog: Biological Anomalies: Humans III. To order, visit: here . From Science Frontiers #34, JUL-AUG 1984 . 1984-2000 William R. Corliss ...
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... No. 34: Jul-Aug 1984 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Dna Even More Promiscuous It was a surprise when DNA sequences from mitochondria in yeast cells were discovered setting up shop in the nuclear genomes (i .e ., the normal genetic endowment of the cell nucleus). Now biologists find that DNA sequences in many species regularly and frequently hop from one genome to another. Genetic material from cell chloroplasts mix with that of the mitochondria and that of the normal nucleus in what seems to be a free-for-all. This genome hopping has earned DNA the adjective "promiscuous." The significance of DNA promiscuity is to be found in the general belief that the cell's mitochondria and chloroplasts were once independent biological entities that, in the course of life's development, invaded or were captured by cells and have led a symbiotic life ever since. The mitochondria and chloroplasts perform certain important functions in the cell but were thought, until now, to retain considerable genetic independence. (Lewin, Roger; "No Genome Barriers to Promiscuous DNA," Science, 224:970, 1984.) Comment. The promiscuity of DNA raises speculation that other DNA-bearing entities that invade the body, especially the viruses, may transfer their DNA to the host, and conceivably vice versa. With DNA apparently much more promiscuous than believed earlier, the role of disease in the development of life takes on a new importance. In other words, all species can potentially exchange genetic information with all others ...
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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 Order from disorder?The apparent creation of order in a universe that is supposed to be running down is the subject of a thoughtful report by Wallace and Karen Tucker. They give additional examples of order arising from disorder in astronomy (spiral galaxies, superclusters), from chemistry (Belousav-Zhabotinsky reactions), and biology (embryonic development). Again and again, they ask why order persists on increasing when the Second Law of Thermodynamics seems to demand more disorder. Throughout the article, the Tuckers employ the card-shuffling analogy. If nature is shuffling the cards of the universe, why are so many royal flushes being dealt? They introduce the works of Ilya Prigogine and others which focus on chemical situations (the Belousov-Zhabotinsky reactions), where reaction by-products actually make the reaction more likely and in which large, stable spiral and ring-shaped structures appear spontaneously. At the macroscopic level, shock waves from supernovas can (at least in computer models) stimulate the formation of spiral arms in galaxies. The article concludes with a quote from astronomer David Layzer: "The universe is unfolding in time but not unraveling; on the contrary, it is becoming constantly more complex and richer in formation." (Tucker, Wallace, and Tucker, Karen; "Against All Odds: Matter and Evolution in the Universe," Astronomy, September 1984.) Comment. Now Layzer's statement seems a ...
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... the last 10,000-20,000 years -- something like that doesn't seem too likely. (Cooper, Bill; "Human Fossils from Noah's Flood," Ex Nihilo, 1:6 , no. 3, 1983.) Comment. This sort of dating puzzle is manna to the scientific creationists. It is therefore not surprising to discover that Ex Nihilo is published by the Creation Science Foundation of Australia. Nevertheless, the Guadeloupe skeletons truly exist -- it's just that the creationists seem to be the only ones talking about them. You have seen their slant on them above. Other interpretations of the Guadeloupe skeletons will be presented in future issues. Reference. Additional information on the Guadeloupe skeleton may be found at BHE12 in our Catalog: Biological Anomalies: Humans III. For details, visit: here . From Science Frontiers #27, MAY-JUN 1983 . 1983-2000 William R. Corliss ...
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... a normal human gene responsible for manufacturing a specific protein and a gene causing cancer is the replacement of a single nucleotide by another in a very long string of nucleotides. This is a very delicate situation. The difference between cancer and no cancer is simply too tiny. Given the high frequency of random changes (mutations), we should all have cancer. One implication is that humans (and other animals, too) have come up with some method of preventing or correcting these minor mutations -- otherwise we would have become extinct long ago. No one knows what this mechanism is or why it sometimes fails. (Anonymous; "More Speculation about Oncogenes," Nature, 300;213, 1982.) Reference. Other anomalies of cancer are cataloged in BHH23-35 in: Biological Anomalies: Humans II. For a description of this volume, visit: here . From Science Frontiers #25, JAN-FEB 1983 . 1983-2000 William R. Corliss ...
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... netted or found dead on beaches, and sometimes eaten. Males, females and juveniles are reported, subsisting on fish in the shallow seas around the Bismarck and Solomon archipelagos. It is unlikely that the animals are dugongs or porpoises, both of which are known to, and readily identified by, the natives." New Ireland is northeast of Papua-New Guinea. The article proper goes on to describe the ri as an air-breathing mammal with human-like head, arms, genitalia, and upper trunk. The lower trunk is legless and terminates in a pair of lateral fins. (Wagner, Roy; "The Ri -- Unidentified Aquatic Animals of New Ireland," Cryptozoology, 1:33, 1982.) Reference. Unrecognized mammals are cataloged in Chapter BMU in Biological Anomalies: Mammals II. Ordering information can be found here . From Science Frontiers #27, MAY-JUN 1983 . 1983-2000 William R. Corliss ...
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... sound, might lead to widespread collapse. Are there other sleepers? A group of burrowing lizards (the amphisbaenians) possess a heavy bone in their heads that helps them ram their ways through the soil. In surface-living lizards this structure is merely a soft, flimsy cartilage. It was long assumed that the bone in the burrowing lizard developed from the cartilage of its surface-living kin. But a study of embryos now shows that the head bone of the burrowing lizard actually developed from a membrane instead of cartilage. The two similarly located structures are not homologous after all. They had different origins. Superficially this doesn't seem very anomalous and especially not very exciting. But vertebrate evolution in particular has been charted on the basis of homologous structures. If these structures have different biological origins -- even in just some cases -- the evolutionary family trees may be drawn wrong. (Anonymous; "Lizard Bone Shakes World of Taxonomy," New Scientist, 98:221, 1983.) Comment. No one yet knows how serious this problem really is. Basically it means that some animals that look alike (at least bonewise) need not be closely related. To use an analogy, if nature has the plans for a house stored in genetic material, it may be able to build that house out of wood, brick, or what ever material is available. From Science Frontiers #28, JUL-AUG 1983 . 1983-2000 William R. Corliss ...
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... 's mood with recovery from illness is anecdotal -- little wonder since mood is hard-to-measure. Some statistical evidence has recently been accumulated by S.M . Levy and R. Herber-man of the National Cancer Institute; but the situation still seems complex at best. From a study of 75 women with breast cancer, there appears to be a significant and involved relationship between age, the body's immune function, and a psychological factor called "fatigue." One clear-cut finding was that young patients facing radiation therapy and also reporting high levels of psychological fatigue were the only patients in the surveyed group showing diminished activity by the body's natural killer cells. These killer cells com-prise an important part of the defense against cancer. This biological consequence of apathy is confirmed by an-other study showing that cancer patients with "psychological distress" had better chances of recovery than those who had no "fight." (Herbert, W.; "Giving It Up -- At the Cellular Level," Science News, 124:148, 1983.) Comment. Assuming such mind-body correlations are real, how is mental attitude (supposedly some pattern of nerve signals in the brain) converted into greater or lesser populations of natural killer cells? From Science Frontiers #30, NOV-DEC 1983 . 1983-2000 William R. Corliss ...
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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 Life As A Cosmic Phenomenon "The arguments in support of life as a cosmic phenomenon are not readily accepted by a culture in which a geocentric theory of biology is seen as the norm." The quotation above heads a revealing discussion by F. Hoyle and N.C . Wickramasinghe as to why their conclusions about cosmic life have not been accepted by the scientific community. Stimulating this article was a statement by J. Maddox, Editor of Nature, to the effect that the labors of Hoyle and Wickramasinghe were not convincing very many scientists because they ". .. had become caught up in the eccentric doctrine of panspermiology, a doctrine for which there was said to be little or no evidence." Hoyle and Wickramasinghe deny their eccentricity and affirm that their ideas have been acquired through observation and the generally accepted methods of deductive science. Basically, Hoyle and Wickramasinghe maintain that evidence supports the concept of life originating, evolving, and being transported from place to place in outer space. We have published many of their results in past issues of SF and see no need to cover the same ground again. Rather, we wish to dwell on the scientific reception of their work. We do this with two quotations from their Nature article. These quotations are embedded in their review of the infrared evidence for biological material in outer space: "Still persuing the infrared problem, we eventually found that among organic materials polysaccharides gave the best ...
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... Science Frontiers ONLINE No. 43: Jan-Feb 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Biological Diversity Crisis If life fills all available energy niches, life must be capable of transforming itself (or of being transformed) into a multitude of different energy transducers or energy utilizers. E.O . Wilson has outlined the diversity of terrestrial life in a recent issue of BioScience. The earth, it appears, is a veritable Gene sis Machine; and it is only one planet among a possible infinitude. So many terrestrial species have already been described that one could easily believe that biological collectors roaming the planet's wild places have just about completed their task. Some recent totals: 47,000 species of vertebrates, 440,000 plants, and 751,000 insects. But we may not even be close to grasping life's diversity on earth! We do well in counting the large mammals and birds, but most insects and microscopic forms of life have escaped description. To illustrate, in 1964, the British ecologist C.B . Williams, combining intensive local sampling and mathematical extrapolation, extimated the insect population as 3 million species. However, by 1985, this figure has been raised ten-fold to 30 million species. Why the huge jump? For the first time, entomologists had found a way to efficiently sample the canopies of tropical forests. This rich stratum between the sunlight and gloomy forest floor 100+ feet below had been largely neglected before. The slick tree trunks and the attacking ...
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... Science Frontiers ONLINE No. 47: Sep-Oct 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Oil & gas from the earth's core In central Sweden this summer, drillers will be boring into the rocks of the Siljan Ring, Europe's largest known meteor crater. Oil and gas should not be down there in any quantities according to current theory, but that's what they are drilling for. Isn't it futile to fight such a well-established dogma that oil and gas have biological origins and therefore must be looked for only where life once thrived? Not any longer! Enough anomalies have accumulated to seriously challenge the idea that oil and gas are byproducts of ancient animal life. Here are a few of these anomalies: The geographical distribution of oil seems derived from features much larger in scale than individual sedimentary features. The quantities of oil and gas available are hundreds of times those estimated on the basis of biological origins. The so-called "molecular fossils" found in oil and claimed as proof of a biogenic origin are simply biological contaminants, particularly bacteria that feed upon the petroleum. Petroleum is largely saturated with hydrogen, whereas buried biological matter should exhibit a deficiency of hydrogen. Oil and gas are often rich in helium, an inert gas which biological pro cesses cannot concentrate. The great oil reservoirs of the Middle East are in diverse geological provinces. There is no unifying feature for the region as a whole and, especially, no sediments rich in biological debris that could have produced ...
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... Science Frontiers ONLINE No. 44: Mar-Apr 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Tunnelling Towards Life In Outer Space Most books on biology begin the history of life in those apochryphal warm ponds of primordial soup. Leave comfortable earth for a moment and consider the immense, cold clouds of gas and dust swirling between the stars and galaxies. At near-absolute-zero, sunless and waterless, these clouds hardly seem the womb of life. Yet, there may be found the atoms necessary to life -- H, C, O, N, etc -- and in profusion. Collisions of cosmic rays can promote the synthesis of fairly large molecules. We have already detected molecules as complex as formaldehyde in the interstellar medium. But surely the immensely more complicated molecules of biology cannot be synthesized near absolute zero. This may not be true either because at extremely low temperatures the quantum mechanical phenomenon of "tunnelling" becomes important. To achieve molecular synthesis, repulsive barriers must be overcome. The warm temperatures in that terrestrial pond can provide the extra kinetic energy to climb over these barriers. In cold molecular clouds we must look elsewhere. The laws of quantum mechanics state that there is always a very low probability that atoms and molecules can tunnel through repulsive barriers -- no need to climb over them via thermal effects. "Specifically, entire atoms can tunnel through barriers represented by the repulsive forces of other atoms and form complex molecules even though the atoms do not have the energy required by classical chemistry to overcome ...
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... spread metabolic change....The number of brain cells [between 5 million and 100 million] involved in the memory for a simple learned discrimination made up about one-tenth of the whole brain." The findings of John et al are hotly contested by some brain researchers. One obvious conflict is that if up to 100 million brain cells are involved in storing just one simple memory, the brain will quickly use up all available cells. It must be that individual brain cells can participate in the storage of many different memories. The conventional mem-ory-trace theory would have to be replaced by a new type of memory architecture. (Bower, Bruce; "Million-Cell Memories," Science News, 130:313, 1986) Comment. Our thinking about biological memory may be controlled by our preoccupation with the two-dimensional circuits of computer memories. Biological memories might be three-dimensional, or of even higher order. Some scientists have ventured that memory might entail electrical charge distribution patterns in the brain; such need not be limited to two dimensions. The same thinking can be applied to the storage of genetic information. While DNA, RNA, etc., may be pieces in the puzzle, the complete solution may include the ways in which these molecules are bent, twisted, convoluted, arrayed, juxtaposed, and so on. In a letter relating to the above article, P.J . Rosch points out that John's results are consistent with the holographic theory of brain function supported by Pribram and Bohm. "In a ...
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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 Chain of crevicular habitats?Towards the end of an article on the eerie blue holes of the Bahamas appears this intriguing paragraph: "William Hart, of the Smithsonian Institution, and Tom Iliffe, of the Bermuda Biological Station, believe that blue holes are one link in a chain of crevicular habitats -- caves, fissures, rocks of the sea floor -- that stretches from one side of the ocean to the other, from the Americas, across the sea floor and the Mid-Atlantic Ridge, to Africa and the Mediterranean. Related Amphipods are not only found in Bahamian caves but in marine caves in Bermuda, the Pacific, and the Yucatan Peninsula." (Palmer, Robert; "In the Lair of the Lusca," Natural History, 96:42, January 1987.) Comment. With this, the vision arises of an earth-girdling, biologically and geologically connected stratum of life that we know next to nothing about. How porous is the earth's crust, and how far down in these pores and interstices does life survive? From Science Frontiers #50, MAR-APR 1987 . 1987-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 45: May-Jun 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Scant Ant Chromosomes The Australian ant Myrmecia pilosula, called the "bulldog ant" because of its viciousness, carries all its genetic information in a single pair of chromosomes. (Males are haploid and have just one chromosome.) Although classified as a "primitive" ant, the bulldog ant exhibits complex social behavior and is obviously far from a simple biological entity. Biologists were therefore surprised to find all genetic instruction residing in a single chromosome pair. Social insects tend to have higher chromosome numbers. It is also interesting that Myrmecia pilosula, originally described as a single species, actually consists of several distinct sibling species with chromosome numbers (i .e ., pairs) of 9, 10, 16, 24, 30, 3l, and 32. Yet, they all look pretty much alike. (Crosland, Michael W.J ., and Crozier, Ross H.; Myrmecia pilosula, an Ant with Only One Pair of Chromosomes," Science, 23l:1278, 1986.) Comment. Chromosome number or the sheer quantity of genetic material seems poorly correlated with biological complexity. From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... s mantle and which contains billions of tons of volatiles, probably including hydrogen; and the origin of the moon from the earth after the formation of the earth's core." " Editor's Note . This article by John O'Keefe puts forth a viewpoint with which most planetologists disagree strongly. On the ground that a fresh airing of the long-standing discussion on lunar volcanism is appropriate, Eos offers this article, untouched by editors or referees, and awaits reply by readers." O'Keefe's article reviews considerable evidence supporting his two points: for Point One; crater dimensions and frequencies, craters with dark floors, lunar soil constituents; and, for Point Two; tektite analysis. He also remarks that the ages of the terrestrial tektite fields correlate with biological extinctions. This can be explained in terms of lunar volcanism as follows: lunar volcanos expel material violently, some of which escapes the moon's gravitational field and is drawn toward earth. Some falls as tektites; the rest forms a temporary ring around the earth. The ring shadows parts of the earth, causing radical climate changes and, as a consequence, biological extinctions. (O 'Keefe, John A.; "The Coming Revolution in Planetology," Eos, 66:89, 1985.) Comment. The Editor's Note does not really convey the depth of the antagonism in the controversy about tektite origin. From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...
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... of an expanding universe on four different observational tests and has found that on each one the tired-light hypothesis was superior. The differences between the rival cosmologies are most apparent at large redshifts, however, and it is in this region that observations are most difficult to make." (Anonymous; "New Study Questions Expanding Universe," Astronomy, 14:64, August 1986.) Gratuitous comment. In all three of the foregoing items, observations are challenging fundamental astronomical hypotheses: the Big Bang, the Expanding Universe, redshifts as cosmological yardstocks, etc. With more and more such data accumulating all the time, the strains in the key girders of astronomical thought are beginning to show. Of course, most astronomers will vehemently deny this assertion. Those who care to read the biological tidbits that follow will discover that biological paradigms are also feeling the pressure of radical change. Geology and psychology are also being wracked by disturbing anomalies. It's like being on the San Andreas fault, these little quakes only presage major shift to come. Reference. The redshift controversy is presented in greater depth in our catalog: Stars, Galaxies, Cosmos. For details, visit: here . From Science Frontiers #47, SEP-OCT 1986 . 1986-2000 William R. Corliss ...
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... 15 years, away from the limelight of mainstream evolutionary argument, cell biologists have been debating a concept that is fundamental to our understanding of how cells evolved. It is the proposal that some of the structures that are found in the larger cells of animals, plants and fungi (eukaryotic cells) are the descendants of simpler bacteria-like organisms (prokaryotic cells) that had at some stage entered into an intracellular existence, or endosymbiosis. The idea is not a new one, but only in the light of modern experimental evidence has it become acceptable to many biologists. If the hypothesis is correct, then virtually all the major groups of familiar organisms originated 'suddenly' through endosymbiotic associations." Following this lead paragraph, with its paradigm-shaking final sentence, are three pages summarizing the biological evidence favoring evolution by endosymbiosis. (Kite, Geoffrey; "Evolution by Symbiosis; The Inside Story," New Scientist, p. 50, July 3, 1986.) Comment. We cannot possibly do justice to this exciting idea of evolution forced by the uniting of different organisms in the limited format of Science Frontiers. Instead, we encourage readers to purchase a new book by L. Margulis and D. Sagan (son of Carl Sagan and L. Margulis) entitled Micro Cosmos. In passing, we must also remark on the obvious relationship of endosymbiosis to F. Hoyle's "evolution from outer space." Hoyle believes that microorganisms and other biological information are transported in cosmic debris. Finally, the story of Lynn Margulis' uphill fight against scientific skepticism is related ...
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... Subjects Unpredictable Things Simple spherical pendulums are fixtures of physics labs, to say nothing of grandfather clocks. It is now widely recognized that pendulums can behave chaotically; that is, unpredictably. As the pendulum bob swings farther away from its rest position, the restoring force becomes nonlinear; i.e ., not proportional to the displacement. At some combination of displacement and driving frequency, a region of chaos may develop, in which theory is powerless to tell what is going to happen next. "It is not just the behavior of pendulums that has sprung this surprise. Systems as diverse as simple electrical circuits, dynamos, lasers, chemical reactions and heart cells behave in an analogous way and the implications extend far beyond these examples -- to matters such as weather forecasting, populations of biological species, physiological and psychiatric medicine, economic forecasting and perhaps the evolution of society." (Tritton, David; "Chaos in the Swing of a Pendulum," New Scientist, p. 37, July 24, 1986.) Comment. Some of the anomalies we record may be the consequence of simple systems gone wild. Chaotic motions of some asteroids and at least one solar system moon are already suspected. Imagine what might happen in much more complex systems, such as biological evolution (hopeful monsters?), brain development (idiot savants?), etc. From Science Frontiers #47, SEP-OCT 1986 . 1986-2000 William R. Corliss ...
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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 Remarkable Distribution Of Hydrothermal Vent Animals Hydrothermal vents support a bizarre array of large clams, mussels, worms and other curious species. These biological communities are unique in that they are supported not by solar energy but rather the earth's thermal energy. What verges on the anomalous is the appearance in both Atlantic and Pacific Oceans of very similar vent communities, with similar or identical species. How did these continent-separated communities originate ? In the words of the author of the present article, "The cooccurrence of a clam, a mussel, and a vestimentiferan worm at widely separated sites in the Pacific and Atlantic represents either an unusual distribution from a single lineage or, even more remarkably, cases of parallel evolution. " (Grassle, J. Frederick; "Hydrothermal Vent Animals: Distribution and Biology, " Science, 229:713, 1985.) From Science Frontiers #42, NOV-DEC 1985 . 1985-2000 William R. Corliss ...
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... oil itself is at least this old. Significantly, the oil contains extremely small amounts of steranes, which are thought to be derived from advanced organisms, but there were plenty of chemicals typical of primitive bacteria. The mere existence of commercially exploitable deposits of Precambrian oil implies that, far from being devoid of life, the ancient earth was host to immense accumulations of bacteria and other simple organisms. (Anonymous; "Ancient Oil in Australia: A New Bonanza?" New Scientist, p. 26, September 11, 1936.) Comment. As discussed above this Australian oil might have been produced abiogenically. The surface and near-surface Athabasca oil sands in western Canada constitute a well-known deposit of almost unbelievable size. Geologists have long speculated about where such an immense quantity of biological matter could have originated. (Few dare to suggest nonbiological origins!) Now, we learn that below the Cretaceous Athabasca oil sands lies a 70,000 square kilometer "carbonate triangle" estimated to contain about 2 x 1011 cubic meters (about 6 cubic kilometers) of bitumen. This bitumen is closely related chemically to the oil sands above it. A common origin seems likely. (Hoffmann, C.F ., and Strausz, O.P .; "Bitumen Accumulation in Grosmont Platform Complex, Upper Devonian, Alberta, Canada," American Association of Petroleum Geologists, Bulletin, 70:1113, 1986.) Comment. Many geologists believe that these incredible accumulations of organic matter migrated from some distant source to their present location. But just where was this prodigious wellspring ...
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... this happens, the ejected galaxies are moving at more than the escape velocity from the system, so estimates of the total mass in the system based on the assumption that all the galaxies are in bound orbits will be incorrect" (Anonymous; "Expanding Clusters Confuse Astronomers," New Scientist, p. 13, March 2l, 1985.) Comment. In previous entries, we have seen jets of stars being squirted into space, immense shells of stars being ejected by elliptical galaxies, and other cosmic sowings of astronomical systems. Now, entire galactic clusters are being thrown around the universe. This hard-ly seems a universe that is "running down," as the Laws of Thermodynamics would have us believe. Somebody or something is stirring the pot -- a pot in which biological systems and perhaps super-biological systems are ingredients in the stew. From Science Frontiers #39, MAY-JUN 1985 . 1985-2000 William R. Corliss ...
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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 Strange Patterns In Another Oceanic Habitat The sea-floor vents and their unique assemblages of animals are just beginning to be explored. "Perhaps the most intriguing biological mystery in the vent area, however, was the finding of thousands of highly symmetric, Chinese-checkerboard-like patterns on the seafloor, which were first photographed several years ago. [P .] Rona thinks the patterns may be either an animal itself or the burrows made by an animal. He says the patterns are 'dead ringers for a 70million-year-old...trace fossil that is exposed in the Alps." (Weisburd, Stefi; "Hydrothermal Discoveries from the Deep," Science News, 130:389, 1986.) Thousands of such checkerboard patterns have been spotted on the seafloors. From Science Frontiers #50, MAR-APR 1987 . 1987-2000 William R. Corliss ...
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... . 43: Jan-Feb 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Exploring The Suberranean World Of Life Examining fluid inclusions in hydrothermal quartz crystals obtained from a drill hole in Yellowstone National Park, K.E . Bargar and his colleagues from the U.S . Geological Survey noted many rodlike and threadlike particles that closely resembled bacteria. Although these partiles move, as if alive, they are only in Brownian motion. But even in death, they tell us that life forms can prosper deep underground at very high pressures and temperatures. The crystals that ultimately grew around the fluid particles came from fractures in Pleistocene rhyolite hundreds of feet below the surface. The authors concluded: "Thermophilic microorganisms may hold the key to an understanding of several biological and geochemical processes, including the origin of life. The discovery of possible microorganisms in these fluid inclusions from the Yellowstone volcanic area enlarges the range of potential environments over which subsequent investigations should be conducted." (Barger, Keith E., et al; "Particles in Fluid Inclusions from Yellowstone National Park -- Bacteria?" Geology, 13:483, 1985.) Comment. It is appropriate to note that similar "organized elements" have been noticed in meteorites for over a century. From Science Frontiers #43, JAN-FEB 1986 . 1986-2000 William R. Corliss ...
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... )Bats are divided into megas and micros. The "megabats," represented by the fruit bats, possess an "advanced" connection between their eyes and midbrains. No other mammals except the primates possess this type of advanced visual organization. In contrast, the "microbats," the common echo-locating insect-eaters have a "primitive" eyebrain connection. This deep division in the bat family -- mega/micro, vegetarian/carnivorous, sight-dependent/echolocating -- suggests that mammal flight has developed at least twice. (Pettigrew, John D.; "Flying Primates? Megabats Have the Advanced Pathway from Eye to Midbrain," Science, 231: 1304, 1986.) Reference. The problems of bat evolution can be found at BME1 in our catalog Biological Anomalies: Mammals II. Ordering information here . From Science Frontiers #45, MAY-JUN 1986 . 1986-2000 William R. Corliss ...
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... astronomer) conclude: "This article outlines the results of a meta-analysis of 37 studies and several more recent studies that examined lunar variables and mental behavior. Our review supports the view that there is no causal relationship between lunar phenomena and human behavior. We also speculate on why belief in such relationships is prevalent in our society. A lack of understanding of physics, psychological biases, and slanted media reporting are suggested as some possible reasons." (Kelly, I.W ., et al; "The Moon Was Full and Nothing Happened: A Review of Studies on the Moon and Human Behavior and Lunar Beliefs,"Skeptical Inquirer, 10:129, 1985.) Reference. Possible connections between human behavior and astronomy are cataloged at BHB27-BHB29 in our book: Biological Anomalies: Humans I. For more information on this book, visit: here . From Science Frontiers #44, MAR-APR 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 44: Mar-Apr 1986 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Squirrels As Measures Of Geological Time Over a century ago, when the truth of biological evolution via natural selection was hotly debated, the proponents of Darwinism were delighted when the geologists presented them with almost endless periods of time in which evolution could progress in small steps from species to species. Now, in a strange turn-about, a creationist writer is using evolutionary theory to infer a very short history for the formation where geologists want a good deal of time. We quote from the conclusion of J.R . Meyer: "If any group of animals were ever going to undergo significant degrees of evolution from parent stock and obtain resultant speciation, surely the Kaibab squirrel would be one of the more likely candidates. Supposedly isolated from their neighbors for hundreds of thousands of generations over a period of at least several million years, and significantly violating virtually every restriction of the Hardy-Weinberg equilibrium for the non-evolving population, these organisms, even by creationist standards, should have undergone significant and detectable changes. In reality all they show are moderate changes, primarily in two coat color characteristics for part of their population. To make things even worse, this species is known to have a highly variable coat-color polymorphism throughout its range. Thus, even the differences displayed appear to be easily accounted for by several mutations and a slight change in gene frequency for one or two loci, all occurring in a limited period of ...
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... Science Frontiers ONLINE No. 49: Jan-Feb 1987 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Geomagnetic Reversals From Impacts On The Earth R.A . Muller and D.E . Morris review the evidence tying geomagnetic reversals to the impacts of large bodies with the earth: the tektites and microtektites; the climate changes; the biological extinctions, etc. Then they propose a physical mechanism for geomagnetic reversals: "The impact of a large extraterrestrial object on the Earth can produce a geomagnetic reversal through the following mechanism: dust from the impact crater and soot from fires trigger a climate change and the beginning of a little ice age. The redistribution of water near the equator to ice at high latitudes alters the rotation rate of the crust and mantle of the Earth. If the sea-level change is sufficiently large ( 10 meters) and rapid (in a few hundred years), then the velocity shear in the liquid core disrupts the convective cells that drive the dynamo. The new convective cells that subsequently form distort and tangle the previous field, reducing the dipole component near to zero while increasing the energy in multipole components. Eventually a dipole is rebuilt by dynamo action, and the event is seen either as a geomagnetic reversal or as an excursion." (Muller, Richard A., and Morris, Donald E.; "Geomagnetic Reversals from Impacts on the Earth," Geophysical Research Letters, 13:1177, 1986.) Comment. That the earth's field is generated by internal dynamo action is ...
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... in Antarctica has provided scientists with clues as to what conditions were like on Mars billions of years ago. Sufficient heat and gas would have been trapped beneath the Martian surface to have generated living organisms, such and algae, bacteria, protozoa, and fungi. [What a leap of faith!] But life would have died out as the planet cooled and much of its atmosphere was dissipated. 'It is highly unlikely life could exist on Mars today,' [C .] McKay said. .. .. . "However some scientists have not dismissed the possibility that primitive life may still exist on Mars. 'The chances are remote but life may be located in slushy brines well below the surface, or even inside Martian rocks,' said Howard Klein, who headed the biological experiments on board Viking. Living microorganisms have been found just below the surface of rocks in Antarctica, Klein said." (Anonymous; Antarctica Hints at Why There May Be Fossils on Mars," New Scientist, p. 20, September 4, 1986.) Comment. It is curious that some of the meteorites picked up in Antarctica are thought to have originated on Mars and been blasted off by meteoric impacts. This observation leads to the speculation that terrestrial life might have been seeded from Mars -- meteoric panspermia! Are we all Martians? If you have hung on this far, you'll want to read about "Life as a Cosmic Phenomenon" just below. Also refer to our catalog: The Sun and Solar System Debris for material on the putative Martian meteorites ...
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... 's spectral analysis we have been able to show that there are two different rhythms in birth frequencies: (1 ) A weekly rhythm characterized by the lowest number of births on a Sunday and the largest number on a Tuesday; (2 ) An annual rhythm with the maximum number of births in May and the minimum in September-October. "A statistical analysis of the distribution of births in the lunar month shows that more are born between the last quarter and the new moon, and fewer are born in the first quarter of the moon. The differences between the distribution observed during the lunar month and the theoretical distribution are statistically significant." (Guillion, P., et al; "Naissances, Fertilite, Rythmes et Cycle Lunaire," Journal de Gynecologie, Obstetrique et Biologic de la Reproduction, 15:265, 1986.) From Science Frontiers #48, NOV-DEC 1986 . 1986-2000 William R. Corliss ...
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