11 results found containing all search terms.

... 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 ... 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 ...
Terms matched: 2 - Score: 162 - 15 May 2017 - URL: /cat-biol.htm

... 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 ... 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 ...
Terms matched: 2 - Score: 150 - 15 May 2017 - URL: /sf066/sf066a02.htm

... 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 ... 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 ...
Terms matched: 2 - Score: 150 - 15 May 2017 - URL: /sf028/sf028p08.htm

... $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: ... -915554-35-6 , 7 x 10 Archeological Anomalies: Small Artifacts Sorry: Out of Print. No longer available. Bone artifacts: Anomalous early bone tools; Bone artifacts of uncertain affiliation; Pre-Clovis bone tools in the New World; Anomalous association of animal bones with ancient human presence; Artificially worked animal bones of great age; Grooved, punctured, Pounded human bones; Evidence of ancient skull surgery (trepanation); Scratched and smashed bones: The cannibalism signature; Exotic mummies Cloth artifacts: Viking cloth in the High North American Arctic; Diffusion of dyed, patterned textile technology; The early selective breeding of colored cotton in the New World; Stone-Age clothing surprisingly modern; Llama wool indicates selective breeding; Similarity of Chinese and Aztec plumagery; Woven cloth in ...
Terms matched: 2 - Score: 141 - 10 Oct 2021 - URL: /sourcebk.htm

... . 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 ... 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 article is really paradigm-shaking ...
Terms matched: 2 - Score: 129 - 15 May 2017 - URL: /sf063/sf063b12.htm

... 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 ... 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 (the so-called Blue Revolution), in which duck and pig manure is dumped into fish ponds as fertilizer. The dense concentration of humans, ducks, and pits threatens to be a factory for ...
Terms matched: 2 - Score: 126 - 15 May 2017 - URL: /sf056/sf056b06.htm

... before animals did!! He goes on: "In standard systematic reasoning, one assumes that the most widespread characteristic represents the primitive state. The fact that feces look so much the same from individual to individual strongly suggests that feces are the primitive condition. The variety of animal bodies, on the other hand, implies that bodies are secondary or derived features of the organisms. The expansion of genetic research in the twentieth century has led to the conclusion among many geneticists that bodies exist solely for the propagation and dispersal of genes. This perspective has been dubbed 'the selfish gene theory'. While the author acknowledges the insight and creativity that went into the selfish gene theory, it must be pointed out that the idea has not been carried far enough by the geneticists. Where did the ... . Rocks containing pellets and algal microfossils range in age from 0.53 to 1.9 gigayears (Gyr) and include Burgess Shale, Greyson and Newland Formations, Rove Formation, and Gunflint Iron-Formation. Similar rock types of Archaean age, ranging from 2.68 to 3.8 Gyr, were barren of pellets. If the Proterozoic microfossils are fossilized fecal pellets, they provide evidence of metazoan life and a complex food chain at 1.9 Gyr ago. This occurrence predates macroscopic metazoan body fossils in the Ediacaran System at 0.67 Gyr, animal trace fossils from 0.9 to 1.3 Gyr, and fossils of unicellular eukaryotic plankton at 1.4 Gyr." (Robbins, Eleanora Iberall, et al; "Pellet Microfossils, Possible Evidence for ...
Terms matched: 2 - Score: 118 - 15 May 2017 - URL: /sf046/sf046p14.htm
... " New Scientist, 89:483, 1981.) Comment. The picture evolving here is one of a hierarchy of evolutionary struggles -- say, humans on one level and their contained defensive cells on another level. The levels are not completely independent. The question that arises next is whether there are other evolutionary struggles going on, possibly in the mitochondria and chloroplasts, which possess their own genetic material. Or, waxing speculative, are there hierarchies of evolutionary struggle above humanity of which we know nothing except for perhaps a few anomalies representing cross talk between levels? From Science Frontiers #15, Spring 1981 . 1981-2000 William R. Corliss ...
Terms matched: 2 - Score: 108 - 15 May 2017 - URL: /sf015/sf015p09.htm

... views of Max Westenhofer, Serge Frechkop, Klaas de Snoo and Bernard Heuvelmans. The study of the human morphology allows logically to carry the problem of Man's origin back to a very early stage of the evolution, and not to which has been reached by apes. From chromosomal and DNA comparison in the cells of living apes and people, several researches argue to-day that humans are genetically more like the common ancestor than is either Chimpanzees or other apes. The array of facts and considerations should be sufficient for an unbiased mind to discount away any idea of simian antecedents in Man's ascent." The body of the article supports de Sarre's thesis with observations from embryogenesis, comparative anatomy (skull, hand, foot), and phylogenesis. (de Sarre, ... ; "Initial Bipedalism: An Inquiry into Zoological Evidence," Bipedia , 1:3 , September 1988.) Comment. Obviously, de Sarre is taking an extreme position, and any observations supporting his position are anomalous by definition. From Science Frontiers #65, SEP-OCT 1989 . 1989-2000 William R. Corliss ...
Terms matched: 2 - Score: 108 - 15 May 2017 - URL: /sf065/sf065b07.htm
... thinkers and non-thinkers. (Morowitz, Harold J.; "Do Bacteria Think?" Psychology Today, 15:10, February 1981.) Comment. This ancient controversy about determinism has been revived as: (1 ) Simple life forms have been found to be not-so-simple; (2 ) All life seems unified by a single (or small number of) genetic codes; and (3 ) "Higher" life forms seem more and more to be just composites of simpler, cooperating biological entities. From Science Frontiers #15, Spring 1981 . 1981-2000 William R. Corliss ...
Terms matched: 2 - Score: 108 - 15 May 2017 - URL: /sf015/sf015p08.htm

... Native American peoples and comparing it with the mtDNAs of Asians and Europeans. The geographical distribution of mtDNA haplogroups can trace out the migratory routes of early humans in the New World and, in addition, provide rough times-of-arrival. Some of this mtDNA evidence will undoubtedly attract the attention of the Clovis Police. But do these law enforcers -- mostly archeologists -- dare to challenge genetic data? Can mtDNA lie? There are in the cells of North American Native Americans mitochondria that seem to divide these peoples into four major "haplogroups." These four groups can be readily traced back to Siberia and northeast Asia. No trouble from the Clovis Police here! But there is also a "haplogroup-X " that does not fit the Clovis paradigm. In North America, ... suppressing all radical notions in archeology. Revolutionaries are everywhere. Not the least of these are studying the mtDNA (mitochondrial DNA) of Native American peoples and comparing it with the mtDNAs of Asians and Europeans. The geographical distribution of mtDNA haplogroups can trace out the migratory routes of early humans in the New World and, in addition, provide rough times-of-arrival. Some of this mtDNA evidence will undoubtedly attract the attention of the Clovis Police. But do these law enforcers -- mostly archeologists -- dare to challenge genetic data? Can mtDNA lie? There are in the cells of North American Native Americans mitochondria that seem to divide these peoples into four major "haplogroups." These four groups can be readily traced back to Siberia and northeast Asia. No trouble from the Clovis ...
Terms matched: 2 - Score: 108 - 15 May 2017 - URL: /sf131/sf131p01.htm