Science Frontiers
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About Science Frontiers

Science Frontiers is the bimonthly newsletter providing digests of reports that describe scientific anomalies; that is, those observations and facts that challenge prevailing scientific paradigms. Over 2000 Science Frontiers digests have been published since 1976.

These 2,000+ digests represent only the tip of the proverbial iceberg. The Sourcebook Project, which publishes Science Frontiers, also publishes the Catalog of Anomalies, which delves far more deeply into anomalistics and now extends to sixteen volumes, and covers dozens of disciplines.

Over 14,000 volumes of science journals, including all issues of Nature and Science have been examined for reports on anomalies. In this context, the newsletter Science Frontiers is the appetizer and the Catalog of Anomalies is the main course.


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... Science Frontiers ONLINE No. 122: Mar-Apr 1999 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Genetic Disconnect Bandings on chromosome 9 from humans (H ), chimpanzees (C ), gorillas (G ), orang-utans (O ) If human and chimpanzee nuclear DNAs differ by only 1.5 %, why are the two species so profoundly different in anatomy and behavior? The obvious external differences are body hair, the use of language, the method of locomotion, and of course culture. Less well known is the fact that humans are more susceptible to diseases like as cancer and AIDS. Apparently, superficial comparisons of DNAs slough over genetic details that result in major differences in the living animals. Some of the genetic differences between humans and chimps seem to belie that miniscule 1.5 % difference everyone bandies about. To illustrate, humans have only 46 chromosomes, while the great apes all have 48. The 1.5 % figure doesn't hint at this significant difference. Next, take a look at chromosome #9 in humans and the great apes. Chromosome bandings are different enough to raise further suspicions about the 1.5 % figure. (Gibbons, Ann; "Which of Our Genes Make Us Human?" Science, 281:1432, 1998.) Comments. It is easy to see how gross comparisons of DNA might miss important details. The popular "DNA-hybridization" method simply mixes together strands of DNA from the two species being compared. These are allowed ...
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... Science Frontiers ONLINE No. 40: Jul-Aug 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Genetic code not universal!Most current textbooks pronounce that the genetic code is not only universal to life but that it must. Alterations in the code, the reasoning goes, would garble genetic messages. Such dogma, however, is based on another dogma, which states that all life on earth derives from a single ancestral line in which the genetic code is fixed and has always been fixed -- a "frozen" accident hit upon "by chance" on the primitive earth. Recently, though, small deviations from the code have turned up in ciliated protozoons and mycoplasmas, much to everyone's surprise. (Scott, Andrew; "Genetic Code Is Not So Universal," New Scientist, p. 2l, April 11, 1985.) Comment. No major deviations from the standard genetic code have been found; but then no one has really looked, because everyone knew the code was universal. It would be quite a shock if terrestrial life were found to have several genetic foundations and as many schemes of evolution. From Science Frontiers #40, JUL-AUG 1985 . 1985-2000 William R. Corliss ...
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... 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 ...
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... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Second Genetic Code And Apparently A Third Genes may or may not be switched on depending upon the addition of molecules called "methyl groups" to DNA. Now, a second kind of gene switch has been discovered on histones, a class of proteins. Figuring out when methylation of histones takes place has far-reaching implications; acting as a second genetic code, histone methylation may determine genetic traits such as the susceptibility to disease. (Martindale, Diane; "Genes Are Not Enough," Scientific American, 285:22, October 2001.) Comment. So, beyond the first genetic code (the DNA) and the second genetic code (the recognized methyl groups), we now have some proteins (the histones) getting in on the act. And the show ain't over yet! From Science Frontiers #139, Jan-Feb 2002 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...
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... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Do birds use genetic maps during migration?Routes taken by migrating German and Austrian blackcaps en route to Africa. Hybrids bisect these initial paths and would end up in the Alps. Many young birds migrate successfully without help from older birds who have made the trip before. The implication is that migration instructions, perhaps even some sort of map of astronomical or geo graphical references, are somehow written upon the genes inherited from their parents. Just how maps can be coded into gene structure is anyone's guess. (In fact, since the DNA in the genes seems to cody only for protein synthesis, the locations and characters of inheritable maps and other biological instructions are not immediately obvious.) The problem has been exacerbated by recent experiments with German and Austrian blackcaps. These two common European warbler species take different routes to Africa in the winter. The Ger-man blackcaps fly southwest and the Austrian southeast--routes 50 apart. A. Helbig has crossed the German and Austrian blackcaps to see what route(s ) their hybrid offspring would take. Curiously, they favored a route intermediate between those of their parents. The hybrids' route -- bisecting those of the parents' -- would take the hybrids right into the Alps, where survival would be unlikely. (Day, Stephen; "Migrating Birds Use Genetic Maps to Navigate," New Scientist, p. 21, April 21, 1991.) ...
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... Science Frontiers ONLINE No. 22: Jul-Aug 1982 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Nomads Within Us It was originally believed that human chromosomes were fixed at conception and all subsequent organic development proceeded from the instructions encoded on them. Biologists have recently discovered that genes grasshopper about, constantly modifying genetic instructions -- at least that's the current thinking. Additional modification of genetic instructions seems to be accomplished by entities called "nomads" or "mobile dispersed genetic elements." One type of nomad is a simple ring of DNA called a plasmid. Plasmids seem to be identical to a kind of virus called a retrovirus, which can penetrate into cells and tamper with gene expression; that is, the way genetic instructions are interpreted. Plasmids have been discovered in maize, fruit flies, bacteria, and, now, humans -- and healthy people at that. No one is quite sure what these plasmids do. Even though they look like retroviruses, they may not be associated with illness, but rather help organisms adapt to changing environments. But no one really knows. (Anonymous; "Human Wandering Genes Can Live on Their Own," New Scientist, 94:18, 1982.) Comment. So, the human body is not only beset by new genetic instructions and the static introduced by invading viruses and other disease agents, but it has an indigenous population of nomads continually fiddling with our cells' genetic instructions. Our bodies seem more like Grand Central Station with trains loaded with new biological ...
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... Songbirds? BBC7 Are Birds More Closely Related to Mammals Than to Reptiles? BBC8 The Inability of Some Birds to Synthesize Ascorbic Acid BBD DISTRIBUTION OF BIRDS IN SPACE AND TIME BBD1 Discontinuous Populations of Birds BBD2 Uncolonized Areas: Unfilled Niches BBD3 Land Birds Observed Far at Sea BBD4 Late Survival of Moas and Passenger Pigeons BBD5 Distribution Curiosities BBE THE FOSSIL RECORD OF BIRDS BBE1 The Fossil Record of Birds and Associated Paradigms BBE2 Evidence against the Dinosaur Origin of Birds BBE3 Protoavis: A Pre-Archaeopteryx Bird? BBE4 Unresolved Nature of Archaeopteryx BBE5 The Apparent Absence of Transitional Forms of Feathers BBE6 Fossils of Ostrich Ancestors in the Northern Hemisphere BBE7 Controversial Feathers of the London Archaeopteryx Fossil BBE8 Giant Fossil Eggs BBF BODILY FUNCTIONS BBF1 The Avian Respiratory System: Unique, Complex, Sophisticated BBF2 Avian Bodily Functions: Some Oddities BBG GENETICS BBG1 Species mtDNA More Diverse Than Morphology BBG2 Discordance in the Date of Divergence of Modern Birds BBG3 Discordances between Phylogenies Established from Morphology and DNA Analysis BBG4 Dearth of Introns in Birds BBI INTERNAL STRUCTURES AND SYSTEMS BBI1 Avian Magnetoreceptors: Hard to Find BBI2 Curious Internal Structures BBO ORGANS BBO1 Complexity and Sophistication of Some Owl Ear-Brain, Sound-Localization Systems BBO2 Regeneration of Brain Neurons BBO3 Curiosities of Avian Brains BBO4 The Pecten: A Unique Structure in the Avian Eye BBO5 Curiosities of Avian Eyes BBO6 High Complexity and Sophistication of the Avian Eye BBO7 Remarkable Tongue Adaptations BBO8 The Loss and Reduction of Reproductive Organs BBT UNUSUAL TALENTS AND FACULTIES BBT1 Infrasound and Atmospheric Pressure-Change Detection BBT2 Utility of Ultraviolet Vision in Birds BBT3 Echolocation: Parallel Evolution in Birds BBT4 Navigational Feats during Migration BBT5 Homing: Release ...
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... 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 Evolution's motor runs fast and quietly M. Kimura has been promulgating what he terms The Neutral Theory of Evolution. He concludes that "the most prev-alent evolutionary changes that have occurred at the molecular level, that is in the genetic material itself, since the origin of life on Earth are those that have been caused by random genetic drift rather than by positive Darwinian selection." Kimua maintains and can experimentally prove to some extent that the genetic material of all organisms changes rapidly and constantly. The genes change much more rapidly than scientists believed just a few years ago. We observe few if any changes at the phenotype level (organism morphology) because the overwhelming majority of these changes are neutral. They confer no significant advantage or disadvantage on the organism. In fact, Kimura and others have demonstrated that the fastest molecular evolution occurs in the least important genes. It is fastest of all in the pseudogenes or dead genes, which seem to have no discernable functions. In other words, the genetic engine is running, but the gears are in neutral! In Kimura's thinking, these molecular changes may eventually become important at the phenotype level if the environment changes or there is some other destabilizing influence. Kimura is the author of the 1983 book The Neutral Theory of Molecular Evolution. Although Kimura has some experimental support, his theory is not widely accepted. (Motoo Kimura; "The Neutral Theory of Molecular ...
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... 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A Third Way?A THIRD WAY? In the never-ending, ever-acrimonious "dialog of the deaf" between the Darwinists and the Creationists, we are perpetually exposed to their extreme, non-negotiable positions. The Darwinists insist upon their one-gene/one-protein genome in which random mutations slowly accumulate and adapt living things to the changing environment. The Creationists only accept a one-time, supernatural creation of "kinds" plus minor adaptations (" microevolution"). J.A . Shapiro, a professor at the University of Chicago, is searching for a "third way," a scientific, non-Darwinian way. Shapiro maintains that five decades of genetic and molecular-biology research have transformed our vision of life. Ile compares the conceptual changes to those accompanying the transition from classical physics to relativity and quantum mechanics. This new theory of evolution -- his "third" way -- will emerge from the convergence of biology and information science. Genomes, asserts Shapiro, are not really the static "beads on a string" envisioned by the Darwinians. Rather, they are fluid and complex. Genes are now seen as multipurpose elements that turn on and off as required for the survival and well-being of the organism they belong to. In this paradigm-eroding paper (referenced below), Shapiro describes four categories of molecular discoveries that have revised our thinking about how evolution works: (1 ) Genome Organization; (2 ...
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... Science Frontiers ONLINE No. 11: Summer 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Hierarchies Of Evolution All organisms from man to mouse to amoeba are merely DNA's way of manufacturing still more DNA -- so goes the modern ramification of molecular biology and the Genetic Code. In other words, DNA and genes are selfish, and ultimate parasites, directing the evolution of life only to maximize the production of DNA. This theme is not the subject of this paper by Doolittle and Sapienza. Rather, they wonder about those nonsense DNA sequences that do not code for protein. The presence of these "useless" bits of genetic material is often explained in terms of gene "expression." Emphasis is always on maximizing the "fitness" of the organism (phenotype). Perhaps this seemingly excess genetic material actually maximizes the fitness (survivability) of the DNA itself. Evolution thus occurs at DNA and gene (genome) levels, despite what transpires at the organism (phenotype) level. (Doolittle, W. Ford, and Sapienza, Carmen; "Selfish Genes, the Phenotype Paradigm and Genome Evolution," Nature, 284:601, 1980.) Comment. We know that mitochondria and chloroplasts have their own genetic material; evolution may be occurring at this level, too, independent of pressures for change on the organisms. Waxing speculative, may there not be other hierarchies where systems are trying to maximize their own survivability, even at molecular, atomic, and subatomic levels? Don't laugh! ...
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... 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 ...
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... Science Frontiers ONLINE No. 127: Jan-Feb 2000 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects A FAR-WANDERING TRIBE?" The Lemba, a Bantu-speaking people of southern Africa have a tradition that they were led out of Judea by a man named Buba. They practice circumcision, keep one day a week holy and avoid eating pork or piglike animals." As the author of the above words, N. Wade, is quick to point out, there are several other groups of people around the world who practice Judaic rites or claim to be of Jewish ancestry but have no provable ancestral connections. The Lemba, however, also have a genetic tie. Lemba males carry a distinctive set of genetic mutations in their Y chromosomes. This particular genetic characteristic is strongly associated with the cohanim, the Jewish priests said to be descendants of Aaron. This genetic trait is less common among lay Jews (only 3-5 %) and very, very rare among non-Jews. This "cohen genetic" signature (cohen = priest) is considered diagnostic of populations of Jewish ancestry. (Wade, Nicholas; "DNA Confirms Jewish Ancestry of African Tribe," Houston Chronicle, May 10, 1999. Cr. D. Phelps. Anonymous; "DNA Ties African Group to Jews," Chicago Sun-Times , May 10, 1999. Cr. J. Cieciel) From Science Frontiers #127, JAN-FEB 2000 . 1997 William R. Corliss ...
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... Science Frontiers ONLINE No. 39: May-Jun 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects How Animals Might Get Inverted The above title is just a literary ploy. We don't know how upside-down animals get that way; and, obviously, we don't think anyone else does either. Nevertheless, biologists are now discovering some radical things about life that could lead to some real "answers." First, we have a case of genetic material being transferred from a fish to a bacterium. The case at hand is the light-producing bacterium that provides the ponyfish with its luminous organ. In this symbiotic arrangement, the fish somehow passes genetic instructions to its retinue of bacteria. (Lewin, Roger; "Fish to Bacterium Gene Transfer," Science, 227:1020, 1985.) Comment. Perhaps symbiotic relationships are fine-tuned by the mutual exchange of information! Second, the role of viruses in transferring genetic material across species barriers is at last getting some serious attention. (Remember how Fred Hoyle was snickered at for promoting this idea in his books?) D. Erwin and J. Valentine, of the University of California, are now pointing out how a whole colony of "hopeful monsters" might be created en masse by an attack of viruses carrying new genetic blueprints. (And remember how Richard Goldschmidt got the same treatment as Fred Hoyle for suggesting "hopeful monsters" decades ago? (Anonymous; "Gene-Swapping Breaks Barriers in Evolutionary Theory," ...
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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 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 ...
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... Science Frontiers ONLINE No. 63: May-Jun 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Language Of Life Popular writers on biology are fond of saying that the genes and their DNA carry all information necessary for the development of an organism and the transfer of inherited characteristics. With the advent of the multibillion-dollar project to map the human genome (our genetic inventory), we have been seeing this extreme claim more often. The truth is that a map of the human genome will not tell us everything. By way of confirmation, we quote the lead paragraph from a recent article in New Scientist: "In the early days of molecular biology, during the 1950s and 1960s, scientists as much as journalists fuelled the euphoria that surrounded the cracking of the genetic code. The secret of life was revealed, so many people thought. As our understanding has grown, however, so has our awareness of our ignorance. Research at the forefront of the molecular sciences has shown that we can no longer regard DNA - the stuff of genes - as a direct and complete set of instructions for the synthesis of proteins. The evidence begins to suggest that messages in the DNA are, in themselves, no more precise than the symbols and sounds with which we communicate. As in the languages with which we are familiar, the correct sense of a message written in DNA seems to depend on the rigorous checking and correction of errors, and on the context in which they are read." The final sentence of the ...
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... to the eggs, etc. (SF#78) Selfish DNA. Where animals are merely mechanisms by which DNA perpetuates itself and expands its domain. In other words, DNA calls the shots -- not us! (SF#11) Now we learn about "gene wars." As is well known, genes are thought to control much of what goes on in a living organism. But are they only carriers of hereditary information? Not according to a long, very technical paper by L.D . Hurst et al. It seems that, like selfish DNA, genes have their own agendas. The insidiousness of this is seen in the first sentence of the paper's abstract: "Self-promoting elements (also called ultraselfish genes, selfish genes, or selfish genetic elements) are vertically transmitted genetic entities that manipulate their "host" [as in "us'] so as to promote their own spread, usually at a cost to other genes within the genome." You may not sense it, but your genes are struggling with each other, and you and/or your progeny will carry out the dictates of the victors of the "gene wars." (Hurst, Laurence D., et al; "Genetic Conflicts," Quarterly Review of Biology , 71:317, 1996.) Comment. Given the power that these "selfish genetic elements" can exert on our bodies, it is but a short step to imagining that they can also direct the course of evolution in ways favorable to their agendas. In this interpretation ...
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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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... 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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... Science Frontiers ONLINE No. 74: Mar-Apr 1991 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects When Identical Twins Are Not Identical Past studies of identical twins separated at birth have documented remarkable similarities between them, despite the fact that they were reared under radically different circumstances. Their physical appearances, habits, vocations, health histories, and other factors are often eerily the same. For example, two female identical twins, who had never seen each other, each wore eight rings! The upshot of such investigations is that most of a person's characteristics are genetic in origin; that is, Nature dominates nurture. But what about identical twins who are remarkably different? They can, for instance, differ appreciably in size, intellect, and behavior. In such cases, does nurture dominate nature? No! Identical twins may diverge even in the womb, where one may receive more oxygen and nutrients than the other. One also may be assailed in by viruses, bacteria, or drugs, while the other escapes. Even more drastic is the possi bility that one twin may pick up an extra chromosome soon after the original egg has split. Also, mutations may doom one twin to Down's syndrome or some other genetic affliction, while the other is unscathed. Identical twins may even be of different sex! Of course, such twins are genetically different, but they are still monozygotic (from the same egg). Blood tests will show them to be identical. It used to be thought that the small ...
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... Science Frontiers ONLINE No. 8: Fall 1979 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The Importance Of Nonsense One of the greatest surprises of modern molecular biology has been the discovery of "split genes" in higher forms of life. In the chromosomes of lowly bacteria, genes march along one behind the other, but in more complex organisms the genes are separated by segments of genetic material that apparently have nothing to do with the manufacture of protein. Because there seems no need for these inserted jumbles of genetic information, they are characterized as "nonsense." But evolutionists insist that this nonsense must have some survival value or it wouldn't be there! Present speculation is that the nonsense segments separate mini-genes that contain the blueprints for assembling well-defined parts of proteins that possess specific functions. To illustrate, the main part of the immunoglobulin molecule has four functional parts (one for interacting with cell membranes, another that functions as a hinge, and so on). Lo and behold, the immunoglobulin gene consists of four mini-genes separated by three segments of nonsense. The suspicion is that the evolution of higher life forms has been accelerated by keeping these prefabricated, functionally oriented mini-genes apart and shuffling them as integral units. The shuffling of entire functional elements rather than smaller bits and pieces of genetic information might speed up organic evolution. (Lewin, Roger; "Why Split Genes?" New Scientist, 82:452, 1979.) From Science Frontiers #8 , Fall 1979 . ...
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... Science Frontiers ONLINE No. 92: Mar-Apr 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The World Before Our World Genetically speaking, modern terrestrial life is bilingual in the sense that it employs two chemical languages. Function is written in the 20 amino-acid "alphabet" of proteins, while information is conveyed in sequences of four nucleotide "letters" called codons. We need go no further with the genetics lesson because our purpose here is to speculate a bit about the monolingual world that is believed to have preceded ours. This older world is commonly termed the "RNA World." It was and is monolingual because both function and information are carried on a single molecule. It is customary to call the RNA World "prebiotic," meaning that it was all chemistry and no life. But, one does wonder whether that was all there was to it. Catalysis and replication of genetic information occurred in the RNA World. What besides a chemical soup might have existed before "life-as-we-know-it" arrived upon the scene? A science fiction writer like H.P . Lovecraft could certainly come up with an ominous entity based upon RNA alone. Be that as it may, a book is now on the market bearing the title The RNA World (R .F . Gesteland and J.F . Atkins, eds., Cold Spring Harbor Laboratory Press, 1993) Nature reviewed the book in its January 20 issue. In addition, the RNA World was discussed recently in ...
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... Science Frontiers ONLINE No. 60: Nov-Dec 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Purposeful evolution?One seemingly unassailable dogma of evolutionary biology insists that natural selection involves, first, the continuous, random, environment-independent generation of genetic mutations; and, second, the subsequent fixation of those mutations that are favored by prevailing conditions. In other works, the genetic mutations cannot be influenced by external events and conditions. But in recent experiments with bacteria (E . coli), J. Cairns et al, at the Harvard School of Public Health, find they actually do produce mutations in direct response to changes in their environment. The adjective "purposeful" has even been applied to the action of these bacteria! Can anything be more heretical? "One of the experiments involves taking colonies of E. coli that are incapable of metabolizing lactose and exposing them to the sugar. If the lactose-utilizing mutants simply arise spontaneously in the population and are then favored by prevailing conditions, then this would lead to one pattern of new colony growth. A distinctly different pattern is produced if, under the new conditions, the rate of production of lactose-utilizing mutants is enhanced. The observation is something of a mixture of patterns, indicating that directed mutation appears to be occurring. 'This experiment suggests that populations of bacteria...have some way of producing (or selectively retaining) only the most appropriate mutations,' note Cairns and his colleagues." (Lewin, Roger; "A Heresy ...
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... 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 Scrapie Transmitted By Prions Scrapie is an infectious neurological disorder in sheep. The infectious agent has been isolated, but it consists only of geneless prions. Somehow, these prions, which are merely protein filaments, get into a sheep's brain and replicate themselves to cause scrapie. With no genetic material of their own, how do the prions multiply? Recent laboratory work suggests that the prions subvert a gene that normally dwells in the brain. With the help of this gene, an endless stream of prions emerges, and the animal is sick. In hamsters, which are employed in laboratory research on scrapie, a gene demarcated PrP has been implicated in scrapie. PrP is present in both healthy and infected hamster brains, but no one knows what its normal function is, if indeed it has one. (Anonymous; "Prion Gene," Scientific American, 253:60, July 1985.) Comment. One can make an immediate connection between the traitorous PrP genes in the hamster brains and the excess genetic material in humans and all life forms. Biologists commonly call excess genetic material "nonsense DNA" which only means that they haven't devined its purpose. But, as already sugested, these unused blueprints may have had some past purpose or will be called into action in the future. The purpose may be insidious, as in the case of scrapie, or vital to the organism's survival in some ...
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... Science Frontiers ONLINE No. 16: Summer 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Hooray, another "dangerous" book!The May 22, 1981, issue of Science devotes three entire pages to a discussion of the issues raised in the book Genes, Minds, and Culture, written by Edward Wilson and Charles Lumsden. The subject of this book is "gene-culture coevolution," which infers that human culture is controlled not so much by "free will" as by rapidly changing human genes. The authors propose that as few as 1000 years are sufficient for important genetic shifts. Such shifts might, for example, impel humans to break out of the Middle Ages and bring on the Industrial Revolution. The most controversial facets of the theory are: (1 ) The tight genetic control over human culture with little room for free will; and (2 ) The rapid blossoming of many cultures as genes shift about. As one scientist remarked, this book is "dangerous." Others describe it as marvelous. The Science article deals not so much with the book as with the reactions to it -- and the reactions have been powerful, both pro and con. (Lewin, Roger; "Cultural Diversity Tied to Genetic Differences," Science, 212:908, 1981.) Comment. The impression one gets from the synopsis of the book is that humankind is diversifying rapidly into new cultural configurations not through human volition but because of those imperious "selfish genes" we all carry. From Science ...
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... Science Frontiers The Book Strange reports * Bizarre biology * Anomalous archaeology From New Scientist, Nature, Scientific American, etc Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics Science Frontiers The Book Contents Science Frontiers is an indexed compilation of the first 86 issues of our Science Frontiers newsletter . Chapter 1. Archeology: Ancient Engineering Works * Small Artifacts * Epigraphy and Art * Bones and Footprints * Diffusion and Culture. Chapter 2. Astronomy: Planets and Moons * Solar System Debris * Stars * Galaxies and Quasars * Cosmology. Chapter 3. Biology: Humans .* Other Mammals * Birds * Reptiles and Amphibians * Fish * Arthropods * Invertebrates * Plants and Fungi * Microorganisms * Genetics * Origin of Life * Evolution. Chapter 4. Geology: Topography * Geological Anomalies * Stratigraphy * Inner Earth. Chapter 5. Geophysics: Luminous Phenomena* Weather Phenomena * Hydrological Phenomena * Earthquakes * Anomalous Sounds * Atmospheric Optics. Chapter 6. Psychology: Dissociation Phenomena * Hallucinations * Mind - Body Phenomena * Hidden Knowledge * Reincarnation * Information Processing * Psychokinesis. Chapter 7. Chemistry, Physics, Math, Esoterica: Chemistry * Physics * Mathematics. Comments from reviews: "This fun-to-read book may lead some to new scientific solutions through questioning the phenomena presented", Science Books and Films Publishing details: 356 pages, paperback, $18.95, 417 illus., subject index, 1994. 1500+ references, LC 93-92800 ISBN 0-915554-28-3 , 8.5 x 11. Order From:The Sourcebook Project P.O . Box ...
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... Science Frontiers ONLINE No. 135: MAY-JUN 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Where Is The Maestro?As we learn more and more about the gene complements of our planet's multitudinous life forms, the more it seems that the vaunted genome may not incorporate all of the information necessary to construct a living organism. Despite assurances to the contrary, we must ask if we really know the whole story. These doubts manifest themselves as we see that creatures that are very much alike genetically may be radically different morphologically. In this vein, C. Ventner asserts that all higher vertebrates have roughly the same genes. The animals that result from these re-markedly similar genomes depend upon when specific genes are turned on and off. Ventner says, "We have the same number of genes as cats and dogs, but differently regulated." The genes themselves are supposed to be simply protein factories. Somehow, they are turned on and off (" expressing" themselves) in just the right sequences to help build the target animal. In a far-stretched analogy, the genes are the instruments in an orchestra and the proteins they produce are the notes in a symphony. But where are the symphony's score and its conductor? Very similar orchestras, it seems, can play radically different symphonies given different scores as interpreted by a maestro. Each living thing is likewise a symphony of proteins, each played by the genome at just the right time. But just where are the score -- ...
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... mtDNA clock run more slowly. So, African Eve, if she ever existed, is probably twice as old as originally thought. (Day, Michael; "All about Eve...," New Scientist, p. 4, March 13, 1999.) Maybe There Were Two Eves! Not only has African Eve aged precipitously but there may have been a non-African Eve, too. J. Hey and E. Harris, at Rutgers, have presented data suggesting that the famous African Eve was the mother of only modern sub-Saharan Africans. Everyone else seems to have descended from an entirely different Eve. These data, if confirmed, demolish the African Eve theory and support the often-reviled multiregional theory of humans origins. (Pennisi, Elizabeth; "Genetic Study Shakes Up Out of Africa Theory," Science, 283:1828, 1999. Bower, B.; "DNA Data Yield New Human-Origins View," Science News, 155:181, 1999.) Genetic Clocks Are Fickle. mtDNA clocks have implied that modern birds and mammals were contemporaneous with dinosaurs, and that some animals evolved millions of years before their first fossils. For good reasons, evolutionists are becoming wary about these molecular clocks. It is fast becoming obvious that: "Clocks tick at different rates in different lineages and at different times. And new work on the biology of mitochondria suggests that their evolution may be more complicated than researchers had suspected." (Strauss, Evelyn; "Can Mitochondrial Clocks Keep Time?" Science, 283:1435 ...
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... like eye-brain systems through "convergent evolution"; or 2. The fruit bats inherited their eye-brain system from closely re lated primates and then developed flight through "convergent evolu tion." R.D . Martin, a physical anthropologist and author of this article, has reviewed the morphological characteristics of the fruit bats and primates. On this basis, he doubts that the fruit bats are pri-mates. Furthermore, molecular studies are also negative. Therefore, possibility #1 above is the more likely one. (Martin, R.D .; "Are Fruit Bats Primates?" Nature, 320:482, 1986.) Comment. In either case, #1 or #2 , we must acknowledge convergent evolution and the likelihood that some subroutine in the genetic code repeats itself in divergent species. Speculative as always, we must ask if the genetic instructions for human or even superhuman intelligence do not reside dormant-for-now in other species. Reference. For more on megabat similarities to primates, go to BMC4 in the catalog volume: Biological Anomalies: mammals II. Ordering information here . An epaulleted fruit bat. (Adapted from the McGraw-Hill Encyclopedia of Science and Technology) From Science Frontiers #46, JUL-AUG 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 29: Sep-Oct 1993 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Genes aren't everything Many species of birds show considerable variation in size, shape, and coloration in various parts of their ranges. Hithertofore, such geographical variations had been considered to be genetically controlled; that is, the genes also varied with the geography. But experiments in which the eggs of redwinged blackbirds were interchanged between nests in northern and southern Florida and also between Colorado and Minnesota seem to show that the environment is more important than genetic endowment. In the redwinged blackbird, the bill size and shape and body weight of the transplanted birds (after hatching, of course) were characteristic of the locale in which they were raised rather than that where the eggs were laid. (James, Frances C.; "Environmental Component of Morphological Differentiation in Birds," Science, 221:184, 1983.) From Science Frontiers #29, SEP-OCT 1983 . 1983-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 66: Nov-Dec 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Care for a cup of viruses?" The concentration of bacteriophages in natural unpolluted waters is in general believed to be low, and they have therefore been considered ecologically unimportant. Using a new method for quantitative enumeration, we have found up to 2.5 x 108 virus particles per millilitre in natural waters. These concentrations indicate that virus infection may be an important factor in the ecological control of planktonic microorganisms, and that viruses might mediate genetic exchange among bacteria in natural aquatic environments." (Bergh, Oivind, et al; "High Abundance of Viruses Found in Aquatic Environments," Nature, 340:467, 1989.) A sip of water could therefore introduce a billion virus particles into your stomach! This level of virus density in natural water is about 10 million times that formerly estimated. Besides reducing your thirst, what are the implications of this discovery? First, it suggests that bacteria in natural waters are probably kept in check by viruses as well as protozoans. So far, this sounds good. Second, since viruses can ferry genetic material between organisms via transduction (i .e ., host DNA is carried to the next host). This means that genes for antibody resistance and increased bacterial virulence (as present in sewage) may be spread quickly and widely. Also, "engineered bacteria" proposed for use in agriculture, viz., the ice-minus bacterium created to protect strawberries, ...
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... Science Frontiers ONLINE No. 18: Nov-Dec 1981 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Descent of man -- or ascent of ape?New Scientist has just published a controversial pair of articles by John Gribbin and Jeremy Cherfas. Summarizing mightily, it seems that: There are no fossils that are unequivocally ancestral to chimpanzees and gorillas but not to man; Therefore, the only good measure of the time when these three species split from one another is the comparison of genetic material; Genetic dating and serological techniques are unanimous in dating the chimp-gorilla-man split at about 5 million years ago. The conclusion that chimpanzees, gorillas, and humans diverged from a com mon ancestor only 5 million years ago is opposed to the widely accepted 20 million years. This conflict in dating is controversial enough, but Gribbin and Cherfas, after considerable fossil analysis, take one more giant step: they suggest that chimps, gorillas, and man descended from an ancestor that was more man-like than ape-like. Chimpanzees and gorillas in this view are descended from man rather than vice versa. (Cherfas, Jeremy, and Gribbin, John; "The Molecular Making of Mankind," and "Descent of Man -- Or Ascent of Ape?" New Scientist, 91:518 and 91:592, 1981.) Comment. This hypothesis is inflammatory enough without our adding more fuel, but the possible connection to the Sasquatch/Abominable Snowman problem should not be overlooked. Reference. The many problems associated ...
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... Science, 221:568, 1983.) Also, men who have recently lost their wives to breast cancer have immune systems less responsive to mitogens. (Journal of the American Medical Association, 250:374, 1984.) (Maddox, John; "Psychoimmunology Before Its Time," Nature, 309:400, 1984.) Comment. This is an appropriate time to suggest that "psychoevolution" may be physiologically possible. If the brain can fight disease and even control cell growth, why not a role for the mind in stimulating the development of new spe cies, perhaps in response to extreme environmental pressures, and perhaps not on the conscious level? The body's sensory system would detect great external stresses, the brain would process the information, and direct some astute genetic shuffling. The genetic inheritance of an organism is not sacrosanct. Radiation, chemicals, and various others mutagens are recognized. There seems to be no a priori reason why the brainbody combination cannot generate mutagens -- possibly not randomly but intelligently! (We ignore here selfish DNA and Sheldrake's morphogenic fields.) Does this mean that if we wish to mutate, we can? Well, it's probably not as simple as wishing warts away, but Maddox's editorial underscores the complexity and subtlety of the brain-body combination. From Science Frontiers #35, SEP-OCT 1984 . 1984-2000 William R. Corliss ...
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... Bone shedders * Skin shedders * "Perfection" of the eye * Dearth of memory traces * Sudden increase of hominid brain size * Health and the weather * Periodicity of epidemics * Extreme longevity * AIDS anomalies * Cancer anomalies * Human limb regeneration * Nostril cycling * Voluntary suspended animation * Male menstruation [Picture caption: Is the complexity of the human eye anomalous?] 297 pages, hardcover, $19.95, 40 illus., 3 indexes, 1993. 494 references, LC 91-68541, ISBN 0-915554-27-5 , 7x10. Biological Anomalies: Humans III: A Catalog of Biological Anomalies Sorry, Out of print Completing our trilogy on human anomalies, this volume focuses on four areas (1 ) the human fossil record; (2 ) biochemistry and genetics; (3 ) possible unrecognized living hominids; and (4 ) human interactions with other species and "entities " Typical subjects covered: Neanderthal demise * Giant skeletons * Tiny skeletons * Hominid gracilization * Sudden brain expansion * Human chimeras * Sasquatch / Bigfoot, Alma, Yeti, and others * Human-animal communication * Humanity and Gaia * Anomalous distribution of human lice Comments from reviews: "Some fascinating thinking om the frontiers of science", Borderlands. 212 pages, hardcover, $19.95, 44 illus., 3 indexes, 1994. 311 references, LC 91-68541. ISBN 0-915554-29-1 , 7x10. Biology Handbook For a full list of biology subjects, see here . Biological Anomalies: Mammals I: A Catalog of Biological Anomalies ...
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... Science Frontiers ONLINE No. 37: Jan-Feb 1985 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The genome's responses to challenges The genome is an organism's genetic endowment. It contains instructions for the organism's growth and development, but it is not like a rigid, uncompromising computer program. Rather, the genome: ". .. is a highly sensitive organ of the cell that monitors genomic activities and corrects common errors, senses unusual and unexpected events, and responds to them, often by restructuring the genome. We know about the components of genomes that could be made available for such restructuring. We know nothing, however, about how the cell senses danger and instigates responses to it that often are truly remarkable." Thus Barbara McClintock ends the paper she delivered in Stockholm when she received a Nobel Prize in 1983. Most of McClintock's paper reviews her pioneering work with the corn genome, but she adds some examples of other genomic responses to external stresses. One such stress is applied to an oak tree when a wasp lays its egg in a leaf. The stress causes the oak genome to reprogram itself and construct a wholly new and unplanned plant structure to house and feed the developing insect. Some of these structures (galls) are very elaborate and are precisely tailored to each different wasp species. From such examples, it is apparent that the genome of an organism somehow perceives stresses and reacts to them -- often in completely unanticipated ways. The stresses may be mechanical, thermal ...
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... Science Frontiers ONLINE No. 122: Mar-Apr 1999 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The mosier mounds El nino -- bueno? The black pyramids Astronomy Our lucky star Ghost galaxies Is a singularity worse than a spinning cosmos? Biology Are we running on martian time? Another skin shedder A GENETIC DISCONNECT Another sucker Geology The earth hums more loudly in the afternoons Geophysics Bizarre phsiological effects of lightning Unusual wave Psychology Exceptional human experiences A FEW POTENTIAL EHEs Unclassified A REALLY MEANINGFUL COINCIDENCE Ach du lieber himmel Now we know why! ...
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... Science Frontiers ONLINE No. 5: November 1978 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Sunspots And Flu The last six sunspot peaks have coincided with flu pandemics. During the sunspot maxima of 1947, 1957, and 1968, the influenza-A virus underwent anti genic shifts that allowed the virus to bypass the immunity built up in the populace. In 1937, a pandemic occurred but no genetic change was detected, although one might have gone unnoticed. The deadly worldwide 1918-1919 epidemic transpired just after the 1917 sunspot peak and before the discovery of the flu virus. The sunspot maximum of 1928 may have signaled a major shift from the virus causing the 1918-1919 pandemic to the type now afflicting us. (Hope-Simpson, R.E .; "Sunspots and Flu: A Correlation," Nature, 275:86, 1978.) Reference. The curious phenomena of epidemics are cataloged at BHH6 and BHH7 in Biological Anomalies: Humans II. This Catalog is described here . From Science Frontiers #5 , November 1978 . 1978-2000 William R. Corliss ...
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... tend to forget that the earth's atmosphere, its oceans, and the solid crust to unknown-but-great depths are colonized in profusion by minute biological entities -- mainly bacteria and viruses. Only when we get the flu or infected finger do these entities impinge upon our consciousness. Below we will learn that there are many more of them than you think. Do viruses control the oceans? You may avoid the beaches after you learn that one teaspoon of seawater typically contains 10-100 million viruses and onetenth that many bacteria. Obviously, most are harmless to humans. However, the viruses do infect the bacteria and phytoplankton, destroying them, and thereby releasing their nutrients. By doing this, they keep the oceans' biological engines running. Further, the viruses act as genetic engineers as they transfer DNA from one individual to another. The oceans may be viewed as vast test tubes in which biodiversity is maintained by teeming, invasive viruses. (Suttle, Curtis A.; "Do Viruses Control the Oceans?" Natural History, 108:48, February 1999.) We are only 10% human! The average human body contains 100 trillion cells, but only 1 in 10 of these cells is your own. The remaining 90% are bacteria. These alien organisms coat your skin and pave your inner passageways from mouth to anus. Of course they are much smaller than your own cells, so what you see is mostly you. Even so, you are a composite creature and cannot survive without these tiny hitchhikers and symbionts. Just as in the ...
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... Science Frontiers ONLINE No. 10: Spring 1980 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Dynamic Dna Smugness over our discovery of the genetic code and some simple features of biological synthesis has recently been undermined by the recognition that the so-called nonsense segments in genes may be important after all. Now comes the realization that the DNA molecule may not be a staid, static construction. Travelling kinks and other disturbances seem to play some unknown role in biological recognition. Some biochemists have even suggested that DNA winds and unwinds or "breathes" like a living thing as it helps to manufacture biological substances. (Spencer, Michael; "Bent DNA," Nature, 281:631, 1979.) Comment. The addition of the time dimension to biological synthesis evokes thoughts of oscillating systems, frequency dependence, filters, etc. Perhaps Nature has invented something better than the silicon chip. From Science Frontiers #10, Spring 1980 . 1980-2000 William R. Corliss ...
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... No. 135: MAY-JUN 2001 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Longevity And Sardinia If you were not born in the fall (see above item) and thereby received a few months' bonus in longevity, you might compensate for the loss by moving to sunny Sardinia in the Mediterranean. Nowhere else on the planet does a larger proportion of the male population live to the century mark. Strangely, female longevity is unaffected by whatever it is that produces the male Methuselahs. We have, therefore, two questions to answer: (1 ) Why do so many males reach the 100-year mark; and (2 ) Why are Sardinia's women short-changed? No one has good answers. It might be genetic (an inbreeding effect) or simply lifestyle (more imbibing of the island's red wine). (Koenig, Robert; "Sardinia's Mysterious Male Methuselahs," Science, 291:2074, 2001.) From Science Frontiers #135, MAY-JUN 2001 . 2001 William R. Corliss Other Sites of Interest SIS . Catastrophism, archaeoastronomy, ancient history, mythology and astronomy. Lobster . The journal of intelligence and political conspiracy (CIA, FBI, JFK, MI5, NSA, etc) Homeworking.com . Free resource for people thinking about working at home. ABC dating and personals . For people looking for relationships. Place your ad free. ...
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... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology Who Needs Boats Confusion that's Hard to Cut Through Astronomy The Spheres can Dance to Convoluted Music White Mars? Ghostly Martian "Forrests" Biology How the Genome's Message can be Altered The Second Genetic Code and Apparently a Third The Mysterious First Green Egg Geology When the Edges of the Continents were Naked Unstable Earth Really High Oysters Geophysics Surf's Up on Californian Shores: Really up at Cortes Bank Tunguska: An Inside Job? Rock-fall Air Blasts Psychology And the Machines Wept for Man ...
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... Science Frontiers ONLINE No. 139: Jan-Feb 2002 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects How The Genome's Message Can Be Altered Our genomes (complements of genes) can no longer be called sets of instructions like those in a computer program. Demonstrating the veracity of this statement are the following three quotations. Increasingly, a picture of interactivity and multifunctionality among genes is emerging that precludes such a simple one-to-one mapping. Furthermore, the genome can exhibit considerable flexibility to adapt when the expression of a particular gene fails, and the interpretation of a mutant phenotype [life form] is also less trivial than it may seen. "Not only are behavioural phenotypes very sensitive to non-genetic influences," writes [R .] Greenspan, "but also the highly interconnected network of the nervous system sets up an additional layer of complexity between the gene and the realization of the phenotype." (Ref. 1) Many genes code for multiple variants of the same protein. And many proteins are modified by adding sugar molecules, which play a big role in determining where proteins go and what they do. What's more, different proteins can join together to carry out completely new functions. (Ref. 2) A group of French biologists, led by Francois Jacob and Jacques Monod showed that the gene's boundaries are fuzzier than had been thought and that genes are not restricted to chromosomes. Recently, biologists have found genes within genes, overlapping genes, and DNA sequences that ...
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... Science Frontiers ONLINE No. 41: Sep-Oct 1985 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology The Australian Pyramids The Inka Road System California Skeletons Not So Old After All Astronomy Galaxy Redshifts Come in Clumps Wimps in the Sun? Biology An Animal That Photosynthesizes The Deceitful She-males Scrapie Transmitted by Prions Latest Episode: Loch Ness Evolution's Motor Runs Fast and Quietly Genetic Garrulousness Death and Social Class Geology Anatomy of A Magnetic Field Reversal Did the Australites Fall Recently? Geophysics Green Sky Flashes Ball Lightning Strikes Twice! Chemistry & Physics All Things Appear to Those Who Accelerate A Possible Crack in the Wall of the Temple of Relativity Restless Gold Unclassified Blinded by the Night ...
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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 The Cosmic Chemistry Of Life C. Ponnamperuma, at the University of Maryland, speculates that the genetic code employed by earth life may, in fact, reflect a universal chemistry. His lab data "suggest that the formation and linking of life's building blocks -- amino acids and nucleotides -- may have been all but inevitable, given the starting chemistry of earth's 'primordial soup.'" Going even further Ponnamperuma believes that "if there is life elsewhere in the universe, chemically speaking it would be very similar to what we have on earth." (Raloff, J.; "Is There a Cosmic Chemistry of Life?" Science News, 130:182, 1986.) From Science Frontiers #48, NOV-DEC 1986 . 1986-2000 William R. Corliss ...
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... Science Frontiers ONLINE No. 56: Mar-Apr 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects The fault, dear reader, is not in our stars but our pigs!Fred Hoyle, in his usual maverick style, has hypothesized that some human flu epidemics are caused by new viruses in jected into the biosphere from outer space. (See his book Diseases from Space .) In yet another book, Evolution from Space , he goes further, stating that the evolution of terrestrial life can also be affected by the extraterrestrial inoculation of genetic material. But, just maybe, influenza pandemics are due to pigs! Every 10-20 years, new flu viruses seem to crop up against which humans have little resistance. The latest theory is that there exists a human-duck-pig connection. It seems that human flu viruses can multiply in ducks, but are not transmitted among ducks. It is also likely that duck viruses multiply in humans, but are not transmitted from one person to another. But enter the pigs: "There is firm evidence that pigs can become infected by and may transmit both human and avian influenza viruses not only amongst other pigs but also back to the original hosts. Therefore, pigs seem to be 'mixing vessels' where two separate reservoirs meet and where reassortment between avian and human influenza A viruses occurs, giving rise to the antigenic shift by creating new human pandemic influenza strains with new surface antigens." The article stimulating this discussion worries about new aquaculture practices, especially in Asia ( ...
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... Science Frontiers ONLINE No. 64: Jul-Aug 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Directed Mutation Dear reader, things have a way of working out serially. For several months, we have had in our possession a paper from Nature, by J. Cairns, of Harvard, plus some passionate correspondence stimulated by the paper. Now that the circle-forming sheep have provided a good introduction, we will jump into the fray, too. Basically Cairns (in Nature) and B. H. Hall (in Genetics ) say that organisms can respond to environmental stresses by reorganizing their genes in a purposeful way. Such "directed mutation" shifts the course of evolution in a nonrandom way. Such a conclusion was like waving a red flag in front of the evolutionists. R. May, at the University of Oxford, complained, "The work is so flawed, I am reluctant to comment." On the other side, a University of Maryland geneticust, S. Benson, comments, "Many people have had such observations, but they have problems getting them published." Our template in this discussion is an article by A.S . Moffat in American Scientist. She says, "The stakes in this dispute are high, indeed. If directed mutations are real, the explanations of evolutionary biology that depend on random events must be thrown out. This would have broad implications. For example, directed mutation would shatter the belief that organisms are related to some ancestor if they share traits. ...
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... Science Frontiers ONLINE No. 66: Nov-Dec 1989 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Doubts About Two Ritually Recited Theories Do you think humans originated in Africa? We have heard for so long now that modern humans got their start in Africa. (This assertion is as hackneyed as: "Life began in a warm little pond"!) There is, of course, some evidence for the African claim. Studies of genetic material and the fossil record are suggestive, although the latter includes the Middle East as a possible birthplace. Other data, however, put the "founding group" of modern humans in Southeast Asia. The iconoclast here is C.G . Turner, II, an anthropologist at Arizona State University. He has analyzed secondary dental traits (number of roots, bumps, etc.) of 12,000 individuals from around the world - both ancient and modern. Turner believes that the "great web of humanity" originated in Southeast Asia. Since then, two large populations, each recognizable by their dental features, have evolved.: (1 ) northeast Asians and the ancient residents of the Americas; and (2 ) southeast Asians, Europeans, ancient Australians, and Africans. Also of note is the close resemblance between native Australians and Africans. (Bower, B.; "Asian Human Origin Theory Gets New Teeth," Science News, 136:100, 1989.) Did the eruption of Thera do in the Minoans? According to popular archeolo-gical doctrine, ...
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... Science Frontiers ONLINE No. 77: Sep-Oct 1991 Other pages Home Page Science Frontiers Online All Issues Last Issue Next Issue Sourcebook Project Sourcebook Subjects Contents Archaeology PLIOCENE SCULPTURES OR FREAKS OF NATURE? A PAPER TRAIL FROM ASIA TO THE AMERICAS Astronomy Mercury: the impossible planet Eclipse shadow-band anomalies Biology Supernova theory exploded NO UNKNOWN MONSTERS IN THOSE FIJI UNDERWATER CAVES: NEVERTHELESS, THE MYSTERY DEEPENS DO BIRDS USE GENETIC MAPS DURING MIGRATION? Cooler heads, bigger brains? The aye-aye, a percussive forager identical Geology VALLEYS OF DEATH AND ELEPHANT GRAVEYARDS Anthracite man? METHANE HYDRATE: PAST FRIEND OR FUTURE FOE? The gruyerizaton of switzerland faulting Geophysics CROP CIRCLES: DAISY PATTERNS AND A RED BALL OF LIGHT Hovering ball of fire SOME OLD GEYSERS ARE NOT SO FAITHFUL WATER'S MEMORY OR BENVENISTE STRIKES BACK Physics Drip, drop, drup, dr** ...
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... Science Frontiers ONLINE No. 91: Jan-Feb 1994 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Dna Undermines Key Paradigms Lately, the Wall Street Journal has expanded its coverage from stocks and bonds to the Marfa lights and other scientific anomalies. Now, it is challenging archeological sacred cows using mitochondrial DNA. Quite a switch from pork futures! Of course, the WSJ is not a recognized scientific source, but its reporter did get his information directly from D.C . Wallace, a well-known professor of genetics and molecular medicine at Emory University and a champion of the African Eve theory. Surely an unusual illustration for the archeology section, but the DNA in these mitochondria may upset long-held theories of human migration. Anyway, Wallace has been studying mitochondria, those little energizers in human and animal cells. Strangely, mitochondria have their own DNA, which is separate and distinct from the nuclear DNA that directs other biological processes. Mitochondrial DNA has had its own history of evolution and is different for various human populations. Wallace has used this fact to trace the origins of American Indians by comparing their mitochondrial DNA with that from Asians, Africans, etc. His conclusions are controversial to say the least. The Amerinds, who comprise most of the Native Americans, arrived in a single migratory wave 20,000-40,000 years ago -- not merely 12,000 years ago! Native Siberians lack a peculiar mutation of mitochondrial DNA that appeared in the Amerinds 6,000-10,000 years ago ...
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... Science Frontiers ONLINE No. 100: Jul-Aug 1995 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects When Humans Were An Endangered Species At one point during the last 400,000 years, the human population worldwide was reduced to only about 10,000 breeding men and women -- the size of a very small town. What caused this population "bottleneck"? Did a population crash engulf the entire globe. If not, who was spared? Such questions arise from a surprising observation: Human DNA is remarkably uniform everywhere humans are found. This hidden genetic uniformity is difficult to believe if one strolls through a cosmopolitan city like New York or Paris. Nevertheless, compared to the DNA of the great apes, whose mutation rates should be close to ours, human genes on the average show far fewer mutations. Human DNA from Tokyo and London is more alike than that from two lowland gorillas occupying the same forest in West Africa. Harvard anthropologist M. Ruvolo has commented: "It is a mystery that none of us can explain." The clear implication is that humans recently squeezed through a population bottleneck, during which many accumulated mutations were wiped out. In a sense, the human race began anew during the last 400,000 years. Unfortunately, DNA analysis cannot say where the very grim reaper came from. (Gibbons, Ann; "The Mystery of Humanity's Missing Mutations," Science, 267:35, 1995.) Comment. The hand that wiped the slate clean, or nearly so ...
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... amino acids into selfreplicating structures; (2 ) slime-mold organization; and (3 ) the origin of the lens structure of the firefly. All of these claims are accompanied by computer simulations of self-organizing reactions. (Madore, Barry F., and Freedman, Wendy L.; "Self-Organizing Structures," American Scientist, 75:252, 1987.) Comment. While we believe that science is the best way yet discovered to search for truth, we have to admit that scientists sometimes get carried away in their zeal to explain things, especially with computer graphics. The Belousov-Zha botinskii reaction is certainly impressive. So is crystal growth. But are the atoms falling together to form a crystal analogous to soldiers falling into ranks; or the assembly of genetic information into the genotypes for our planet's multitudinous species? How far can we apply reductionism? Spectacular, evolving forms erupt in the Belousov-Zhabotinskii reaction. Waves of chemical activity propagate through a receptive liquid medium. From Science Frontiers #53, SEP-OCT 1987 . 1987-2000 William R. Corliss ...
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