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In the place of the contemporary conception of God, a personal God, God as a Spirit, God as a Being, Triune, or even a unitary God, the conception of a holy law of evolution will emerge.... The thought of pure materialism cannot satisfy; we need something that will meet our desire for imagination and that does not contradict serious and honest thought. We have this in the conception of a holy law of evolution, a concept, which we piously call Providence | ||||||||||||||||
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pin URL into your email or website.07/29/2005 Update on young Enceladus has just reported: go to 7/14/2005 story and read about the new claim of icy volcanos!
New Planet Discovered Beyond Pluto; Another Has a Moon 07/30/2005
Since so many Kuiper Belt objects have been discovered in the last couple of decades, this is not quite the big news it might have been; still, new planets have historically been considered spectacular discoveries. Uranus launched William Herschel to fame in the late 18th century, and Neptune led to a well-known priority dispute between Adams and Leverrier in the the 19th. Clyde Tombaughs discovery of Pluto in 1930 was a monumental task of searching through photographic plates. Now, we know there are many other rocky bodies out there beyond Neptune and far past Pluto. Having a 10th planet will certainly change the textbooks and might turn out to be one of those historical announcements you will tell your grandchildren about. Just hope they dont name it Darwin or Huxley or something. (After Pluto, is another Disney character in the lineup?)Darwins Complete Writings to Be Posted on Internet 07/29/2005 ![]() Cambridge University is planning to post online tens of thousands of pages of the complete works of Charles Darwin and the people who influenced him, reported Nigel Williams in Current Biology.1 1Nigel Williams, Darwin on the web, Current Biology, Vol 15, R530, 26 July 2005. Bad news for the Darwin Party. What will they do when his racist writings become public (09/13/2002), and the world can see exposed his connivances with the Four Musketeers to shut off opposition to his little black book? (See 10/24/2002 and 01/06/2004 entries). What will they do when the intelligent design movement puts links everywhere to their favorite quote? A fair result can only be obtained by balancing the facts and arguments on both sides of each question. Great idea by Cambridge. Now Charlie can be caught in his own web.Tailpipe Soot: Can It Live? 07/28/2005 ![]() Better stay clear of polycyclic aromatic hydrocarbons (PAH). They come out of your tailpipe and furnace, line your chimney, and generally are products of unhealthy processes like industrial waste and cigarette smoke. According to Environment Canada, PAHs are a concern because some of them can cause cancers in humans and are harmful to fish and other aquatic life. So why the joy from the Spitzer Space Telescope team? Robert Roy Britt explains from Space.com: The discovery of organic molecules, called hydrocarbons, shows that the raw materials for life were present long before our solar system formed. The JPL press release claims, Using Spitzer, scientists have detected organic molecules in galaxies when our universe was one-fourth of its current age of about 14 billion years. These large molecules, known as polycyclic aromatic hydrocarbons, are comprised of carbon and hydrogen. The molecules are considered to be among the building blocks of life. Universe Today picked up on the L word with its title, Ingredients of Life 10 Billion Light-Years Away, and so did New Scientist, Lifes ingredients found in early universe. It takes a desperate Darwin junky to get high on tailpipe exhaust. They should be weeping over their sins, seeing complex advanced molecules far too early for their cosmological models, but what are they doing instead? Hallucinating with poison, making deadly molecules come alive in their imaginations. How and when did science ever sink to this level? Hydrogen is a building block of life, for goodness sake, and so are electrons. Do we conclude that we have found the building blocks of life in a CRT? Publicists go out of their way to put the L word in any cosmological story because they think its sexier and will attract the public attention. If so, the Great Unwashed have only themselves to blame for giving birth to new suckers every minute. Actually, they probably dont even read this stuff. The problem is with the Washed on the outside but not on the inside.Cells High-Fidelity Proofreading and Editing Explained 07/26/2005 ![]() Its unusual to have a story win both Amazing and Dumb awards simultaneously, but the reason will become clear.ed.) Luisa Cochella and Rachel Green (Johns Hopkins) have published a primer on Fidelity in Protein Synthesis in Current Biology.1 This is a good article for cell biology enthusiasts to read, to learn more about the methods cells employ to translate DNA into proteins without making mistakes: how they perform proofreading, editing and quality control, the molecular machines that are involved, and the remarkable optimization levels they achieve between the competing constraints of accuracy, efficiency and speed. These processes increase the fidelity of translation over simple base-pairing by up to 100,000 times, even working rapidly so that vital cell processes are not delayed by too much inspection. The authors describe strategies used by translation machines, the amazing family of aminoacyl-tRNA synthetases, the ribosomes, and more. They use the word fidelity 18 times and high fidelity five of those. Despite their contribution in helping readers of the magazine appreciate the wonders of high fidelity translation in the cell, they win the Stupid Evolution Quote of the Week award for their opening two sentences: The flow of genetic information from DNA to RNA to protein constitutes the basis for cellular life. DNA replication, transcription and translation, the processes through which information transfer occurs, are the result of millions of years of evolution during which they have achieved levels of accuracy and speed that make modern life possible (emphasis added in all quotes). 1Luisa Cochella and Rachel Green, Fidelity in protein synthesis, Current Biology, Vol 15, R536-R540, 26 July 2005. Did that little paean to evolution warm your bosom? More importantly, did it contribute one whit to this article? Cochella and Green, bless their Darwinista hearts, have illustrated again the freakish juxtaposition of intelligence and nonsense that characterizes evolutionary jargon. It seems like a kind of schizophrenia or mystery religion to the uninitiated to hear high fidelity, quality control, optimization, genetic code and other design words ascribed to mindless processes of evolution. Do they explain how this incredible system evolved? Of course not; being brainwashed materialists, they just assume it had to, so it did.Brain Is Faster Than the Blink of an Eye 07/26/2005 ![]() You blink about every 4-6 seconds, says David Burr in Current Biology,1 adding to over 17,000 blinks a day. Each time the world goes black for 100 to 150 milliseconds, as the eyelids attenuate the light a hundredfold. Why dont we see the world like a flickering movie? We generally perceive an uninterrupted stream of visual information. It turns out that there is a synchronized interlock between the blink response and the visual cortex of the brain, such that the brain temporarily suppresses vision during each blink. To find this out, a team of scientists in London, also publishing in Current Biology,2 repeated a 25-year-old ingenious experiment, but this time added functional MRI imaging on the brain. They made the retina see continuous light by shining it up the palate of test subjects wearing lightproof goggles, then watched how the brain reacted during blinks, even though the light seen by the retina (through the mouth) was continuous. Sure enough, the brain anticipated each blink by suppressing the visual cortex during the blink. This means that we dont see the dark; when we blink, the brain just skips the interruption. See also the summary on EurekAlert. 1David Burr, Vision: In the Blink of an Eye, Current Biology, Vol 15, R554-R556, 26 July 2005. 2Bristow et al., Blinking Suppresses the Neural Response to Unchanging Retinal Stimulation, Current Biology, Vol 15, 1296-1300, 26 July 2005. While this feat was evolving, we wonder if it was like the early fighter planes trying to shoot machine guns through the propeller. Until engineers figured out how to synchronize the firing between the propeller blades, how many test pilots shot themselves down? (Uh, whoops....) How many cheetahs in a full gallop had to learn to coordinate their attacks when the lights were on, till they got frustrated and sent their brains back to Tinker Bells workshop for an upgrade?Life on Mars and Titan? 07/26/2005 ![]() Life has not been found on Mars, but some scientists, according to National Geographic News, are worried that we are contaminating the planet with Earth germs that will make the search for Martians more difficult. Speaking of Mars, a report in Science Now claims that Mars rarely got above freezing in its entire history. The life-on-Mars angle is not news, but life on Titan? Sure enough, two astrobiologists, according to New Scientist, are claiming there might be faint evidence for life on the frozen moon of Saturn among the barbecue lighter fluid (see 04/25/2005 entry). Based on initial chemical analysis from the Huygens Probe (see 01/21/2005 and 01/15/2005 stories), Chris McKay and Heather Smith think something might be feasting on gas. They think the microbes would breathe hydrogen rather than oxygen, and eat organic molecules drifting down from the upper atmosphere, especially energy-rich acetylene, according to the report. Better keep that oxygen from Saturns rings away (see 02/28/2005 entry), or the whole moon might blow like a torch. That produces some follow-up speculations. Would such an event cook the life well done? If a barbecue happens with no one around to eat it, is there really a taste? McKay ought to know better. He knows chemistry, and he knows thermodynamics. If life is information made flesh (see 06/25/2005 article), where is he going to import that ingredient? Astrobiologists are going to lose their last smidgeon of credibility totally if they keep pushing the myth that life just happens everywhere just because they need to justify their careers. Honesty is the best policy.Do Butterflies Evolve Via Team Stripes? 07/25/2005 ![]() A BBC News story is claiming that butterflies split into competing teams when differences in their wing patterns emerge. Based on a paper in Nature,1 this is supposed to be an example of a rarely-observed mechanism for speciation, called reinforcement: in this case, These wing colours apparently evolved as a sort of team strip, allowing butterflies to easily identify the species of a potential mate. Why is this newsworthy? Julianna Kettlewell explains, Given our planets rich biodiversity, speciation clearly happens regularly, but scientists cannot quite pinpoint the driving forces behind it (emphasis added in all quotes). The authors of the paper are careful to describe their hypothesis of reinforcement as merely a suggestion: Therefore, although we cannot distinguish at what level (intraspecific or interspecific) reinforcement has operated, our comparative study demonstrates that natural selection against maladaptive matings is likely to have caused widespread divergence in pre-zygotic isolating characters between sympatric species of Agrodiaetus, and could have led to speciation. 1Lukhtanov et al., Reinforcement of pre-zygotic isolation and karyotype evolution in Agrodiaetus butterflies, Nature 436, 385-389 (21 July 2005) | doi: 10.1038/nature03704. Ironic that Julianna Kettlewell has the same surname as the infamous researcher of peppered moths (see 06/25/2004 entry). This article doesnt improve much on evolutionary storytelling. Who is asking how or why the little flying bugs developed team spirit? Can they even see their own wing patterns, let alone care whether that attractive, sweet-smelling female over there has identical strips? Seems to be another case of imputing human aesthetic values on bugs. As long as were speculating about butterfly fashion fads, why wouldnt they just as easily be saying, vive la difference?What Is Really Known About the Genetic Basis of Evolution? 07/25/2005 ![]() Now that the genomes of a variety of plants and animals have been published, is there a clear picture of evolution emerging? Sean Carroll (Howard Hughes Medical Institute) wrote a review in PLoS Biology,1 in which he explored the current thinking about the evolution of anatomy at the genetic level. The thing to watch for in this article is evidence that evolutionary processes at the genetic level can produce complex, novel structures: innovations such as eyes, new organs, new body plans and the like. Carrolls article can be considered a kind of State of the Evolutionary Theory Address on this question. Confident that evolutionists are on the right track, Carroll nonetheless admits that much is puzzling, and that a coherent theory is yet to be discovered. The picture is much more complicated now than the old neo-Darwinian idea that beneficial mutations in genes would be passed on to offspring, producing net changes over time. Thirty-five years ago, Susumi Ohno suggested that, instead, gene duplication might be the primary source of beneficial variation. Four years later, Allan King and Mary-Claire King suggested that changes in gene regulation might be more important than genetic mutations alone in driving the evolution of anatomy. These ideas were both due to the observation that the small degree of molecular divergence observed could not account for the anatomical or behavioral differences between chimps and humans. Since those early days of comparative genomics, three molecular mechanisms have become candidates for the evolution of anatomy: (1) gene duplication and divergence, (2) regulatory element expansion, and (3) isoform evolution (new exon and splicing sites in genes that create the potential for alternative forms of a protein to be made). One genetic phenomenon that complicates evolutionary change is pleiotropy: the multiple effects of single variations (see 03/31/2004 and 03/17/2003 entries). This is the law of unintended consequences, so to speak; a mutation that might benefit one tissue could wreak havoc in another and therefore antagonize evolution by being selected against. The three mechanisms listed above must, therefore, provide compartmentation against the damaging effects of antagonistic pleiotropy for the evolution of anatomy to proceed: The three mechanisms gene duplication, regulatory sequence expansion and diversification, and alternative protein isoform expression accomplish essentially the same general resultthey increase the sources of variation and minimize the pleiotropy associated with the evolution of coding sequences. The global question of the genetic basis of the evolution of form then boils down to the relative contribution of gene duplication, regulatory sequence evolution, and the evolution of coding sequences, over evolutionary time. I will first examine what is known about the role of regulatory sequences and then discuss the contributions of coding sequences and gene duplication to the evolution of anatomy. (Emphasis added in all quotes.)Having set the stage, Carroll examines the potential for each of these factors for explaining the evolution of anatomy:
Any statements or claims, then, about the genetic changes that make us human must be weighed critically in light of the power and limitations of the methodology employed, and the scope of the hypotheses being tested. While it is understandable that some biologists have reached for the low-hanging fruit of coding sequence changes, the task of unraveling the regulatory puzzle is yet to come.In conclusion, Carroll makes the case that considering what we now know, regulatory sequence evolution should be the primary hypothesis considered. Thats going to be difficult, because it is impossible to distinguish meaningless from functional changes by mere inspection i.e., what was formerly considered junk DNA (see 07/15/2005 entry), with its repetitions and apparent pseudogenes, is going to be more difficult to interpret than the coding regions. But the task is clear: In order to approach the origins of human traits, much greater emphasis has to be placed on comparative studies of gene expression, regulation, and development in apes and other primates. Thirty years after King and Wilson predicted the importance of gene regulation, his concluding sentence indicates the work has not yet begun: This is precisely the requirement forecast by King and Wilson 30 years ago, only now we have the means to meet it. 1Sean Carroll, Evolution at Two Levels: On Genes and Form, Public Library of Science: Biology, 3:7, July 2005. This article is based on the Allan Wilson Memorial Lectures, UC Berkeley, Oct. 2004. 2Carroll also mentions how differences in Hox gene expression are associated with large-scale differences in axial patterning in vertebrates, arthropods, and annelids, but this assumes evolution rather than demonstrating it. If you thought Charlie had figured this all out 146 years ago, wake up and smell the bitter coffee. Here we have The Theory of Evolution, that rock-solid foundation for all of law, ethics, philosophy, art, science, education and even religion, so secure that no student in public school should ever be allowed to hear anything else, and now they tell us that everything you thought you knew about it was wrong, and the biologists have to start over. This can make one mad enough to spit the bitter coffee back into the face of the Darwin Party waiter who handed it to us and said there was nothing else to drink.Michael Ruse Balances the Scales in Creation-Evolution Conflict 07/22/2005 ![]() Sahotra Sarkar seems in a bit of dilemma about how to treat Michael Ruses new book, The Evolution-Creation Struggle (Harvard, 2005). In his review of the book in Science,1 Sarkar knew that Ruse is an important ally in the fight against intelligent design (see 02/18/2003 entry), but he seemed a little bit put off by Ruses distinction between evolution and evolutionism. Ruse is brazen in his claim that most evolutionists have made a religion out of the theory. Sarkar begins, In this timely book, Michael Ruse interprets the last 200 years of conflict between biology and religion as a struggle between evolutionism and creationism. Evolutionism is not merely an endorsement of the scientific theory of evolution. It consists of the whole metaphysical or ideological picture built around or on evolution, including a belief in progress and attempts to reduce cultural and ethical values to evolutionary biology. As such, it constitutes a secular religion. Thus, for Ruse (a philosopher of science at Florida State University), the debate over creationism is more a conflict between two religions than one between religion and science. (Emphasis added in all quotes.)Since such a position seems to discredit the natural scientists endeavors to investigate the evolutionary roots of ethics and behavior, including altruism and sexual mores, Sarkar appears to take issue with this claim, but only with kid gloves. Most of his review is a dispassionate discussion of the contents of the book with only minor criticisms about omissions or misplaced emphases. For instance, look how he describes Ruses depiction of evolutionary theory in the 19th and early 20th century as more religious rhetoric than sound science: The Enlightenment offered a vision of progress based on human effort. The emerging pre-Darwinian views of evolution (such as those of Erasmus Darwin, Jean-Baptiste de Lamarck, and Robert Chambers), although hardly professional science, co-opted this vision in their accounts of organic change.Nothing but objective reporting so far. But then, Sarkar gets a little riled when Ruse depicts the cult of progress continuing unabated through the formation of neo-Darwinian theory in the 1930s and beyond: On Ruses account, evolution became a professional science following the modern synthesis of the late 1920s and 1930s. Ruse argues, though not very convincingly, that the architects of the synthesis continued to uphold an ideology of progress and endorse evolutionism. He ignores the fact that, with the exception of R. A. Fisher, these architects largely rejected attempts to deploy evolution in the political arena. (Some, such as J. B. S. Haldane, whom Ruse ignores, often explicitly rejected progress.) Ruses sketch of contemporary evolutionary theory is also idiosyncratic, with sociobiology presented as that theorys most significant achievement. Because the sociobiologists W. D. Hamilton and Edward O. Wilson are the heroes of this story, Ruse claims that contemporary evolutionary biology endorses evolutionism and not merely evolution.That seems too much to take. Yet Sarkar is careful not to alienate his ally. While finding something to praise, he gently scolds Ruse for providing only an unfortunate whimper instead of a triumphant charge to inspire the pro-evolution scientists in their battles against creationists: The final chapters of The Evolution-Creation Struggle turn all too briefly to the contemporary debates over creationism. Ruse offers a short and cogent critique of intelligent design that concentrates on its failure to spawn any serious scientific research.2 But the book ends with an unfortunate whimper: we are told that we should try to understand the other side; we are not told how Ruses understanding of that side will help us prevent the reintroduction of religion in our science classes. 1Sahotra Sarkar, Evolution and Religion: Seeing Similarities, Science, Vol 309, Issue 5734, 560 , 22 July 2005, [DOI: 10.1126/science.1115782]. For another review, see the 05/06/2005 entry. 2For contrary evidence, see the 06/25/2005 entry. Wow: this is quite telling. Michael Ruse seems to be evolving toward rapprochement with I.D. with each new book. Although he has been adamant against the cult of progress for quite awhile (see 06/12/2003 commentary), he is making even more startling claims now: (1) most historical evolutionists were more religious than scientific in their embrace of the cult of progress; (2) evolutionism is just as religious as Christianity, (3) the religion of evolutionism continues to the present day, and (4) evolutionists need to understand the other side. Point (1) is clear to any halfway objective historian of science and should not be all that controversial. But points 2, 3, and 4, though flimsy concessions from a creationist view, are almost fighting words to an evolutionist.A Day in the Life of an Evolutionary Biologist 07/21/2005 ![]() Meet Dr. Judith X. Becerra. She is an expert on plants of Mexico. Her latest research strove to determine the rate of evolutionary diversification of a genus of trees with a name similar to her own surname: Bursera. These trees inhabit a range of biomes in the tropical dry forests of Mexico and are well adapted to the local conditions. Dr. Becerra divided the groupings of Bursera into 10 geographical regions then performed molecular comparisons to produce a phylogenetic tree of the genus. She concluded that the crown group began to diversify about 60 million years ago, slowly at first, then radiated more rapidly into additional species as the mountains were forming, but before the Baja Peninsula broke off, floated away, and reattached to the mainland. She deduced that the most rapid diversification occurred between 30 and 7.5 million years ago, with a peak at 13.5 mya mostly in 5 of the 10 geographical areas. Since then, the rate of diversification has slowed to a crawl, in her opinion because the opportunity for diversification of Bursera has declined as the possibilities for further geographical expansion of the tropical dry forest have declined. Her results were written up and published in the Proceedings of the National Academy of Sciences.1 1Judith X. Becerra, Evolution: Timing the origin and expansion of the Mexican tropical dry forest, Proceedings of the National Academy of Sciences USA, 10.1073/pnas.0409127102, published online before print July 20, 2005. What follows is not to be taken in any way as a disparagement of Dr. Becerra and her efforts. Unless proven otherwise (which seems highly unlikely), we should assume her a bright, active, diligent scientist, respected among peers, fulfilling her career as an evolutionary biologist with exemplary field work and analysis. Her paper looks like standard research fare, complete with dozens of references, graphs, diagrams, equations, and all that would be expected in a scientific paper. She made observations, proposed a hypothesis, tested it, and made conclusions. Who could possibly criticize such a constructive enterprise, undertaken simply with the desire to shed light on the history of a particular group of plants?Lung Link to Dinos and Birds Disputed 07/21/2005 ![]() Carl Wieland at AIG has given a creationist response to the widely-publicized claim last week that dinosaurs breathed like birds (see Live Science and News@Nature). Creationists are good for evolutionists. Otherwise, who would keep their rampant speculations in check? If evolutionists were really interested in truth, they would welcome debate over interpretations of evidence from anyone who argues with sound logic, integrity and respect for the brute facts. Since the scientific establishment will not even consider any opinion coming from outside the Darwin cheerleaders club, its up to individuals to hear both sides and judge who is providing the better interpretation.Computer Model Claims Lucy Walked Upright 07/20/2005 ![]() A computer robot model of the gait of Australopithecus afarensis (aka, Lucy), reported in the BBC News, suggests that she walked upright. This is partly on the skeletal structure of the foot and the distance between the Laetoli footprints preserved in fossil ash, where are claimed to date from the same time period Lucy lived. The article ends with some doubt: There are still some people who argue that, looking at the anatomy of the foot bones of afarensis, that they were unlikely to have made the Laetoli footprints, [Chris Stringer] told the BBC News website. So it doesnt end the argument because there is still the possibility that there were different creatures around at the time. The Laetoli prints are identical to modern human footprints. The only reason paleoanthropologists claim they were made by A. afarensis is the dating: they are too old to have been made by modern man. Thats why the artists rendition shows the tracks being made by a family of evolving creatures with an upright gait, human feet and ape-like faces.Depressed Kerry Supporters Find New Cause: Fight Creationism 07/20/2005 ![]() A grass-roots group of Virginia liberal Democrats has found a new cause to lift them out of their depression after John Kerrys defeat last fall, according to a Washington Post article reprinted by MSNBC News: Keep Virginia evolving. Their chosen mission is to defend evolution from intrusions by the intelligent design movement and conservative Republicans and Christians. Peter Slevin writes: Evolutions newest defenders, who came together in frustration after the November elections, have little political experience, apart from hoisting Kerry-Edwards signs in morning traffic. They mostly are middle-class people with day jobs. Some had protested the Vietnam War but had rarely felt inspired to undertake political activism since. Together, they call themselves the Message Group and depict themselves as determined and balanced voters worried about social conservatives.Starting from scratch about seven months ago, the group realized they shared a general angst but no mission. After some discussion, they landed on the cause of defending evolution, especially after hearing that a Baptist pastor had predicted that if enough doubt could be cast on evolution, liberalism would die. The thought of that prospect apparently provided the spark to lift them out of the malaise of depression and frustration over Kerrys defeat and give them a new rallying cry. Now, though their aim of defeating intelligent design is explicit, their strategy is, well, evolving.They decided to take a stand in Virginia before ID advocates take up their cause in school board hearings. Their first mailer, urging 75 like-minded souls to Keep Virginia evolving, failed to stir the masses to rise up, Slevin said; this draft leaflet landed with an ugly thud. The cause did not resonate with Virginia Democrats somehow. Those who even knew about it suggested that ignoring ID was the best strategy. The Message Group tried again, this time with the approach of linking ID with the culture war and the Christian Right. Fairfax County, which recently chastised a creationist teacher (see 06/14/2005 entry), might join their cause, they hoped. They also planned to hold a mock Scopes Trial (see 07/19/2005 entry) with the roles reversed for effect, and plotted to link their efforts with the gubernatorial campaign next year. Meanwhile, the Creation Mega-Conference that started Sunday at Liberty University has not seemed to notice these new foes. One of the leaders of the Message Group was a former Vietnam sit-in protestor who hasnt been politically active for years, but was challenged by his wife, who said, according to Slevin, You used to be so active. You used to be so smart. Why dont you get off your butt and do something? Another was upset by what he perceived as hypocrisy among Christians. Another feels the religious right is a pernicious foe. Conservatives who have heard about this are laughing that it will backfire, stimulating Virginians to come out and defend their beliefs and vote Republican. They think it will make liberals spend a lot of energy but accomplish little. Slevin points out that the Message Group seems more interested in psychotherapy to alleviate their depression over the Kerry loss than any genuine concern about the truth of evolution: The new activists describe the effort as a catharsis, no matter the outcome. This is really funny. It almost makes you feel sympathy for these old Vietnam hippies with their tie-dye shirts and long gray hair. There must be something they can do. Ah! Heres a flag we can send up the pole to see if anyone salutes: Keep Virginia evolving! Yes, Virginia, there really is a Charlie Darwin.Bone Has Built-In Shock Absorbers with Molecular Springs 07/19/2005 ![]() Your bones have little molecular springs in them that unwind and keep the collagen fibrils glued together when stress threatens a fracture. See the description, with electron micrographs and diagrams, in a press release from UC Santa Barbara. Said co-author Daniel Morse, director of UCSBs Institute for Collaborative Biotechnologies: Its especially exciting for us to find the profound medical significance of our discoveries for human bone. He described the discovery of molecular shock absorbers providing a kind of self-healing glue holding biological mineralized structures together when studying the abalone shell six years ago. Its truly remarkable to find the same fundamental mechanisms operating in bone, said Morse.(For a related story on marine shells, see 07/26/2004 entry.) Paul Hansma, physicist at UCSB, noted that while a paper on bone is published every six minutes, little is known about how it works at the molecular level. New techniques like atomic force microscopy are allowing scientists to see these tiny molecular structures for the first time. The UCSB paper has achieved the highest resolution images of bone ever published. Since these safety mechanisms work well in young healthy bone, the new findings may help medical researchers find ways to overcome skeletal problems that often come with aging, including bone brittleness and osteoarthritis. Since no evolutionists believe people evolved from abalones, their only recourse is to wave the magic wand of convergent evolution to explain built-in molecular shock absorbers. Remember that improbabilities are multiplicative, not additive and so are credulities.Has Anti-Semitism Been Good for Jewish Evolution? 07/19/2005 ![]() National Geographic News gave favorable coverage to a controversial theory by anthropologists at University of Utah that anti-semitism was a form of natural selection. The racism against Jews in Europe, while selecting for higher intelligence, also selected for certain types of diseases. Reporter James Owen did point out that not all anthropologists agree with the hypothesis that IQ differences can have a genetic basis. That such poor reasoning and lousy science would get prominent coverage in the leading popular geographic magazine in the world is an illustration of the pernicious influence of evolutionary thinking on our society. This hypothesis downplays the intellectual and moral factors involved. Consistently followed, it would lead one to believe that anti-Semitism has been a good thing, if it led to the genius of Einstein. If this kind of sloppy research, based on faulty assumptions and selective statistics, were published in some other field, it would be quickly scorned by academics. The phrase natural selection is like a free pass around the security guards of science. Should evolutionary anthropologists watch an Auschwitz as detached observers, measuring what genetic traits are being naturally selected by the process? Its time to call moral evils evil instead of rationalizing them on evolutionary grounds. Lets see how they explain it when the public has had enough, and there is a widespread outcry against Darwinian thinking. Would that prove survival of the fittest ideas?Scopes 80th Anniversary Leads to Reanalysis 07/19/2005 ![]() Alex Johnson, reporter for MSNBC News, has written a piece trying to set the record straight about the Scopes Trial of 1925. Often portrayed as a battle of science vs religion and a group of hillbilly hicks against enlightened intellectuals (the Inherit the Wind stereotype), the historical trial was much different, he demonstrates. William Jennings Bryan has really gotten a bad rap, for instance, because he performed well under cross-examination by Darrow and stayed on the offensive. He kept his head throughout the trial and afterwards as he continued to work on his final arguments. His death was not due to stress over evolution but rather to diabetes. History should remember Bryan as a defender of womens suffrage, direct election of senators and many other good things. The image of the Scopes trial many have comes more from the biased rhetoric of H. L. Mencken and Hollywood than from history: If you read only Menckens account, dripping with big-city Northern snobbery, or remember Fredric Marchs semi-hysterical performance as the fictionalized Bryan in Inherit the Wind, you could be forgiven for believing Darrow demolished Bryan and, with him, the biblical account of creation. But the trial transcript and more objective contemporary coverage tell a different tale. (Emphasis added in all quotes.)Johnson referred to the new book by John Perry and Marvin Olasky, Monkey Business: The True Story of the Scopes Trial, and also a book by Jeffrey P. Moran (U of Kansas), The Scopes Trial: A Brief History with Documents (2002). He indicates that Historians know better than to accept the caricature perpetuated in the media about the trial. The most important thing to understand about the Scopes trial, Johnson writes, was that it was a publicity stunt. There were no fundamentalist preachers trolling the hallways of Daytons schools hunting for teachers who were violating Tennessees prohibition on teaching evolution. This image of yahoos in overalls who didnt like book-learnin has caused trouble for those trying to understand the anti-evolution movement, Johnson says, quoting Moran: Whats happened in the last 40 years is creationism has become quite suburban, even quite well-educated and not purely a Southern phenomenon. Go to this article and give it a good vote. It was refreshing to see, for a change, a reporter helping dismantle the myths about the Scopes Trial rather than perpetuating them. Johnsons treatment actually made the northern liberals look bad and Bryan look good. He showed how the perception of the Scopes Trial was due more to propaganda and the media circus surrounding it than to the actual record of what happened. He pointed out that historians give a much more favorable impression of Bryan than is commonly assumed. For those of us raised in public school with mandatory viewings of Inherit the Wind, its about time. See The Monkey Trial site for a comparison of portrayals in the movie with the historical record. Inherit the Wind deserves to be thrown into the bin along with Birth of a Nation as an egregious example of twisting history. (Surprisingly, the play and movie was written to satirize the McCarthy era, not the actual Scopes trial, according to Johnson.)First-Generation Star Claim Discounted 07/18/2005 ![]() Claims made in 2003 that the first generation of stars, made of pure hydrogen, might have been detected, are now shown to be erroneous (this is an update on the 04/24/2003 entry). Iwamoto et al. in Science1 have shown that the two hyper-metal-poor stars are actually second-generation stars, seeded with heavy elements by supernovae. Timothy C. Beers (Michigan State), writing in the same issue of Science,2 said that astronomers have been looking for these first-generation stars for 50 years. Theoretically there could not have been anything but hydrogen and helium in the first generation of stars, but all seen thus far contain heavier elements (metals) that indicate an earlier generation must have existed, produced the heavy elements from supernova explosions, then seasoned the dust and gas with these elements which later collapsed to form new stars. Beers hopes new observations will form the basis for assembling the story of creation of the elements that were eventually incorporated into all of us. 1Iwamoto et al., The First Chemical Enrichment in the Universe and the Formation of Hyper Metal-Poor Stars, Science, Vol 309, Issue 5733, 451-453, 15 July 2005, [DOI: 10.1126/science.1112997]. 2Timothy C. Beers, The First Generations of Stars, Science, Vol 309, Issue 5733, 390-391 , 15 July 2005, [DOI: 10.1126/science.1114671]. The story of creation is in your hotel room drawer. Starstuff is just stuff, but it takes a mind to know one (see 07/15/2005 entry).School Evolution Bills Listed 07/18/2005 ![]() In response to claims in the media that many states are passing bills to mandate the teaching of intelligent design along with evolution, Seth Cooper on the Evolution News blog has listed 10 states where evolution bills are being debated and three more where discussions are taking place in the legislature. Contrary to media reports, most states are not mandating the teaching of I.D. but rather seeking ways to permit alternatives to evolution to be heard. (The Discovery Institute does not recommend mandating the teaching of intelligent design in public schools.) The highest-visibility case is in Kansas. The Wichita Eagle reported that one member of the school board is considering additional changes to the standards to allow further criticism of evolutionary theories, but the majority are working to clarify the wording of the new standards that take effect in the fall. Tom Magnuson at ARN.org claims the Kansas City Star reporter gave an inaccurate description of the situation and made major misstatements. Since reporters often fail to do their homework and repeat the propaganda of the Darwin Party, it is important as always to have ones Baloney Detector in good working condition. Notice, for instance, how the Wichita Eagle labels the pro-evolutionists with the mild term moderates as opposed to the conservative members arguing for change. What other political labels can you come up with for these opposing groups that could spin the story either way?Junk Cells Maintain the Brain 07/16/2005 ![]() The most abundant immune cells in your brain are not the neurons, but microglia spindly cells that were thought to be static and immobile, the smallest of the glia cells that were once considered mere scaffolding to support the more important gray matter (see 11/20/2001 and 01/29/2001 entries). When two scientists recently applied the new technique of two-photon microscopy to a live healthy mammalian brain, however, they were stunned at what they saw the microglia doing... a static state is hardly what was observed, reported Science magazine.1. They were the most motile cells in the brain. The little cells were observed to act like well-trained, active patrolmen doing a vital job. They extended probes into their environment to monitor the health of the brain, clean up debris and fight microbes. A caption explained: Microglia continually extend ... and retract ... processes, surveying their immediate environment within the brain. The processes move rapidly toward a site of injury, such as a damaged blood vessel in the brain, in response to the localized release of a chemoattractant ... from the injured sited. Once at the target site, the processes form a barrier to protect healthy tissue. (Emphasis added in all quotes.)Microglia comprise about 10% of cells in the central nervous system. This monitoring and disaster response apparently goes on continually. These two elegant studies provide direct evidence for the highly dynamic nature of microglia, indicating that the brain is under constant immune surveillance by these cells. Who knows what we would think without them. 1Luc Fetler and Sebastian Amigorena, Brain Under Surveillance: The Microglia Patrol, Science, Vol 309, Issue 5733, 392-393, 15 July 2005, [DOI: 10.1126/science.1114852]. Similar to the story on junk DNA (see 07/15/2005 entry), this goes to show that nothing in biology makes sense apart from design. If we would approach biology with a design perspective (see 06/25/2005 entry), we might really begin to understand what life is all about.Sharks and Beavers Inspire Humans 07/16/2005 ![]() Animals never cease to amaze us with their clever solutions to problems that plague human technology. EurekAlert told of work being done by the Society for Experimental Biology to emulate shark skin as a self-cleaning surface for boats; National Geographic News has pictures of the new product, and a comparison with shark skin. The navy is very interested in this (ever seen a shark with barnacles?). Not only would a sharkskin-like hull resist barnacles, it would make a ship glide with more ease through the water, saving energy. From the mammal world, National Geographic News reported that beaver dams are inspiring fish-friendly hydroelectric power plants. Beaver dams usually stand no more than ten feet (three meters) tall and integrate a series of steps into the slope, reporter John Roach explained. This is a height and design surmountable by migrating fish... The dams are also a natural part of the environment in many parts of the world. Mans solutions to both these problems have been clumsy, polluting and expensive. Its humbling to have to imitate supposed lower forms of life. (Good. Nothing like a little humility for us humans.) Maybe the new biomimetics trend (see 02/09/2005 and 09/21/2004 stories, for example) will teach us how to cooperate with the environment instead of fighting it. Need we point out that biomimetics operates on an implicit intelligent-design assumption.Tulsa Zoo Tolerates Religion Except the Bible Kind 07/16/2005 ![]() Its OK to praise the Hindu god Ganesha and preach pantheism at the Tulsa zoo, but not to mention Genesis. The zoo board reversed itself after first agreeing to permit an exhibit of the biblical creation account, reported Agape Press. Christian supporters argued that the zoo already features religious symbols in other displays, including a statue of an elephant-like, Hindu deity. It seemed that it was only fair to add the Judeo-Christian creation account to the mix. At first the zoo agreed, but exhibit designer Dan Hicks thinks the board caved in to special interest groups: Hicks believes the Tulsa Park and Recreation Board that originally approved the creation display for the zoo ultimately caved in to the demands of a vocal minority. He contends that the Interfaith Alliance, Tulsa Metropolitan Ministries and others of these groups that claim to be all about tolerance and inclusion are actually more like political action committees affiliated with Americans United for Separation of Church and State.Answers in Genesis also had stern comments about the reversal. Polls showed that 76% of the public favored the Genesis display. The Hindu-pantheistic exhibit proclaimed, The Earth is our mother, the sky is our father. Tolerance in our culture has a very specific meaning: it means forcing Christians, with their hands tied behind their backs and their mouths gagged, to endure witnessing every weird, depraved or wicked viewpoint paraded in front of them, without recourse, with the mantras separation of church and state! or evolution is a fact! shouted endlessly if they appear tempted to resist, to see how much they will tolerate. When the victims appear ready to burst their bands and fight back, they smile and pretend that they didnt really mean it and only wanted to be inclusive. Pacified, the victims relax for another round. Now that you know this, you will understand liberalism much better.Does the Brain Produce the Mind and Ethics? 07/15/2005 ![]() Two contrasting views on the mind/body problem appeared in science journals recently. In Nature this week,1 Paul Bloom (Yale) reviewed The Ethical Brain (Dana Press, 2005) by Michael S. Gazzaniga, a member of the Presidents Council on Bioethics. Bloom felt the need to clarify the difference between theological and evolutionary views on the source of ethics, because he felt Gazzaniga was careless about specifying the existence and source of moral sensibilities. Bloom was frank and earnest about the distinction: Gazzaniga is a lot less cautious when it comes to the implications of neuroscience for ethics in general. As he puts it in his preface, I would like to support the idea that there could be a universal set of biological responses to moral dilemmas, a sort of ethics, built into our brains. My hope is that we soon may be able to uncover these ethics, identify them, and begin to live more fully by them. I believe we live by them largely unconsciously now, but that a lot of suffering, war, and conflict could be eliminated if we could agree to live by them more consciously.A very different view of the mind has been published by the Philosophical Transactions of the Royal Society2 by Jeffrey Schwartz, a friend of intelligent design leader William Dembski. Schwartz contends that assuming the brain can produce the mind is based on ideas about the natural world that have been known to be fundamentally incorrect for more than three-quarters of a century, namely classical physics compared to quantum physics: Contemporary basic physical theory differs profoundly from classic physics on the important matter of how the consciousness of human agents enters into the structure of empirical phenomena. The new principles contradict the older idea that local mechanical processes alone can account for the structure of all observed empirical data. Contemporary physical theory brings directly and irreducibly into the overall causal structure certain psychologically described choices made by human agents about how they will act. This key development in basic physical theory is applicable to neuroscience, and it provides neuroscientists and psychologists with an alternative conceptual framework for describing neural processes. Indeed, owing to certain structural features of ion channels critical to synaptic function, contemporary physical theory must in principle be used when analysing human brain dynamics. The new framework, unlike its classic-physics-based predecessor, is erected directly upon, and is compatible with, the prevailing principles of physics. It is able to represent more adequately than classic concepts the neuroplastic mechanisms relevant to the growing number of empirical studies of the capacity of directed attention and mental effort to systematically alter brain function.In effect, you cannot get mind out of matter, because this is precluded by quantum physics. Dembski explains that this proposition challenges the materialism endemic to so much of contemporary neuroscience, and argues for the irreducibility of mind (and therefore intelligence) to material mechanisms. 1Paul Bloom, Dissecting the right brain, Nature 436, 178-179 (14 July 2005) | doi: 10.1038/436178a. 2Schwartz, Stapp and Beauregard, Quantum physics in neuroscience and psychology: a neurophysical model of mind-brain interaction, Philosophical Transactions: Biological Sciences, The Royal Society, 0962-8436 (Paper) 1471-2970 (Online). Bloom properly distinguished the stark contrast between theological and evolutionary explanations for ethics, but he committed logical fallacies in supporting the latter. He borrowed Christian words like innate moral sense, appreciate, reason and progress which are undefined terms in the Darwin Dictionary. How can he decide that the amorality of evolution is notorious without making a value judgment? His argument shoots itself in the foot and thus leaves the alternative, the proposition that our universal moral sense had been implanted by an all-knowing and all-loving God, the logical choice.Another Dead Sea Scroll Fragment Discovered 07/15/2005 ![]() A secretive encounter with a Bedouin in a desert valley has produced a fragment of the Bible transcribed nearly two millennia ago, reported MSNBC News. The fragment, a portion of Leviticus on parchment, was found near the Dead Sea, and has given rise to hope that the Judean Desert may yield more treasures. The artifact dates from the period of the Bar Kochba revolt in the second century of the Roman Empire. This is the first discovery of its kind since the 1960s. The archaeologist reluctantly paid a Bedouin for the fragment for fear it would otherwise be lost. The land of the Bible remains a buried treasure. Only a small percentage of potential sites have been explored, and only a small fraction of artifacts have been uncovered. Each fragment found in this politically-troubled land has enormous potential to shed light on the greatest story ever told.More Evidence the Molecular Clock is Broken 07/15/2005 ![]() We live in interesting times, grinned David Penny in Nature,1 reporting on how estimates of evolutionary past based on comparative genomics (the molecular clock) is producing confusing results. Apparently, evolutionary geneticists are going to have to make use of the theory of relativity i.e., that how fast the clock ticks depends on the viewpoint of the observer. An analysis of genetic data sets from primates and birds provides firm evidence that molecular evolution is faster on shorter than on longer timescales, his subtitle explained. The estimated times of various evolutionary events require a rethink (emphasis added in all quotes). Its hard to give up a pet theory, he continued: The relative constancy of the rate at which DNA sequences evolve has been a treasured icon of molecular evolution for nearly 40 years. The occurrence of such a stochastic molecular clock was initially quite unexpected, and was explained by Motoo Kimura by assuming that most changes to amino-acid and nucleotide sequences were neutral neither beneficial nor injurious, in Charles Darwins prescient phrase.Penny discussed whether the phenomenon is real, whether it can be explained, and why it was not picked up earlier. Part of the reason is no one was looking: For some reason, the continuum between population heterozygosity and long-term evolution has not been adequately studied. Although it is a continuum, the techniques required may change as the timescale decreases. For example, some concepts from long-term evolution (binary evolutionary trees with sequences studied only at the tips) have been extended into populations where trees are no longer binary, and ancestral sequences (at internal nodes) are still present in the population. There are hints that a formal multiscale study is necessary, because even though the same underlying process is occurring, different features of trees are observed as the timescale changes.Lastly, he asked what are the consequences of this revelation. Many time estimates will require recalculation thats one practical aspect. In some cases the constraints are from recent events, and it is the long-term events that require re-analysis, he explained; Much more remains to be done. The assumption of a single mutation rate is gone; Even for nucleotides there are many mutation rates, he pointed out. Penny feels the solution is tractable, but the implication is that many former assumptions have been invalidated by the new data hence his last sentence, we live in interesting times. 1David Penny, Evolutionary biology: Relativity for molecular clocks, Nature 436, 183-184 (14 July 2005) | doi: 10.1038/436183a. Another evolutionary assumption has been overturned by more careful analysis; keep up the good work. Next time, though, remove the assumption of evolution before making the observations. Relativity applies to physics, not biology. An evolutionary tale that requires relativity to keep its plot together has left the science department for the theater class (see 11/29/2004 entry).Planet Orbiting Triple Star Tightens Noose on Planet Formation Theories 07/15/2005 ![]() The discovery of a planet orbiting a triple star system (see JPL Press Release), described by Maciej Konacki in Nature,1 has delivered a severe challenge to theorists. In short, the environment is particularly prohibitive for planet formation. This Jupiter-size planet should not be there. Planet-formation theories have taken a triple whammy lately. The discovery in recent years of so-called hot Jupiters (giant planets close to their parent stars see 05/07/2004) was unexpected; it caused a major reconsideration about where and how gas giants form. Prior to the indirect observation of planets like 51 Pegasi, which is closer to its star than Mercury to our sun, it was thought impossible that a Jupiter-class planet could form in a tight orbit, because the gases like hydrogen and helium that make up the bulk of such planets could only be retained beyond the snow line of about 3 AU.2 This led to a radical reinterpretation of the core-accretion hypothesis: planets formed far out, then migrated inward (see 05/16/2003 entry). The second whammy was the revival of the disk-instability hypothesis as a strong competitor to the core-accretion hypothesis, with proponents of each arguing not for the strengths of their own views, but against the weaknesses of their opponents views (see 09/22/2003, and Quick Takes following the 07/25/2003 entry). Added to these headaches have been ongoing discoveries of planets where they shouldnt be, like around a binary star (08/24/2004), around a white dwarf in a globular cluster (07/10/2003), in wildly elliptical orbits (07/21/2003), orbiting young stars (11/11/2004 and 05/28/2004) and even wandering alone (11/29/2003). In addition, there seems to be no correlation between dust disks and planets (10/18/2004), and many stellar environments seem downright hostile to planets (07/06/2004 and 04/26/2001). This scattering of strange observations led Stuart Ross Taylor last year to lament the lack of order in planetary science and to call the origin of the solar system one of the oldest unsolved problems in science (07/29/2004). This third whammy appears to be a crushing blow. Planet-formation theories began optimistically with the nebular hypothesis of Pierre Laplace in the 18th century, but each new observation seems to raise the stakes. Last August (08/27/2004), the planet found around a binary was tentatively rationalized because the two host stars were widely separated (56 year orbital period), leaving enough space for a dust disk to supply planet-building material around one star tha |