Keyword: evolution
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Long, long ago, some of the first dinosaurs walked the Earth. But scientists have not known with any confidence where those initial dino prints were made. Much more recently, hikers stumbled across a few bits of bone at Ghost Ranch in New Mexico, leading to the discovery of a game-changing dinosaur that reveals where it all began. The dinosaur, now called Tawa hallae, had a body that was only the size of a medium to large dog, but its remains have helped scientists shore up where dinosaurs came from. The research team used the extremely well-preserved and complete skeletal remains...
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Monkey Alarm Calls Provide Clues To Origins Of Human Language Monkeys form very primitive sentences, scientists have discovered, in research that brings us closer to understanding the origins of language. Richard Alleyne, Science Correspondent 11 Dec 2009 A team found the Campbell's monkey can add a simple sound to its alarm calls to create new ones and then combine them to convey even more information. Human language is incredibly complex, but one defining feature is the process of adding a prefix or suffix to a word to change its meaning. For example, adding "hood" to the word "brother" to form...
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Introduction The famous evolutionist Julian Huxley once said, "Any view of God as a personal being is becoming frankly untenable. The difficulty of understanding the functions of a personal ruler in a universe which the march of knowledge is showing us ever more clearly as self-ordered and self-ordering in every minutest detail is becoming more and more apparent" (Essays of a Biologist [New York: Alfred A. Knopf, 1923], p. 217). His sentiments were echoed by the British philosopher Bertrand Russell: "That Man is the product of causes which had no prevision of the end they were achieving; that his origin,...
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A recent LiveScience article "Americans Believe in God, Astrology, and Ghosts" indicates that the beliefs people hold may actually be contradictory and a mix of a variety of themes. This tends to confirm the view that people will believe almost anything regardless of whether it is consistent with what they profess. After all how does one reconcile the fact that 22% of those identifying themselves as Christians also believe in reincarnation? Nearly one in five has had an encounter with a ghost, while 25% believe in astrology. While all this can be somewhat entertaining, I was struck by another article...
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Researchers have described remarkably well-preserved tissue discovered inside a salamander fossil. The fully intact muscle tissues also had blood-filled vessels, and they had not been mineralized like most fossils. This “fresh meat” find is depicted as the “highest quality soft tissue preservation ever documented in the fossil record.”[1] But given its assigned age of 18 million years old, it shouldn’t be there at all...
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Ostrich eggshell (OES) beads from SDG site reflect primordial art and a kind of symbolic behavior of modern humans. Two different manufacturing pathways are usually used in the manufacture of OES beads in Upper Paleolithic. Pathway 1 is identified from these collections; blanks are drilled prior to being trimmed to rough discs. Based on stratigraphic data and OSL dating, these ostrich eggshell beads are probably in Early Holocene (? 10 ka BP)... According to previous observation and study systems of Western scholars and the specific characters of OES beads from SDG site, this study found that the two pathways of...
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Canada’s Macleans news site recently published an article titled “Darwin movie too evolved for U.S. audiences”. The article refers to the decision of US film distributors to “pass” on the film “Creation”—the dramatized story of Charles Darwin’s struggle while writing the Origin of Species. The refusal to distribute a film premiered and acclaimed at the Toronto Film Festival seems to have again roused the Canadian media’s scorn of the “backward Americans” of which—according to Gallup—only 39% believe Darwin and his evolutionary theory. It is interesting how very differently the Canadian and world media treated America during WW II when far...
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At National Review Online, conservative curmudgeon John Derbyshire has weighed in on the Climategate scandal by encouraging conservatives not to jump on the anti-science bandwagon. I share his worry and find his advice is good so far as it goes; but I think Derbyshire’s defense of science might actually encourage the skepticism he wants to prevent. Most of the trouble comes from his invocation of the word “science,†and his claim that science has a magisterium.His article is called “Trust Science.†I’m not sure what that means. What is “science,†and how do we “trust†it? Imagine if someone said:...
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Last February I mentioned the events that would commemorate the life and work of Charles Darwin in 2009. I had no idea at the time that I would be invited to participate in one of these events. But there I was, precisely 150 years after On the Origin of Species first appeared, seated with other scientists in front of a packed room that featured, among other interesting things, a life-sized model of a baleen whale. The venue was the National Museum of Natural History in Stuttgart, Germany, and the occasion was a panel discussion titled Design without a Designer? [1]...
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New species might arise as a result of single rare events, rather than through the gradual accumulation of many small changes over time, according to a study of thousands of species and their evolutionary family trees. This contradicts a widely accepted theory of how speciation occurs: that species are continually changing to keep pace with their environment, and that new species emerge as these changes accrue. Known as the 'Red Queen' hypothesis, it is named after the character in Lewis Carroll's book Through the Looking-Glass, and What Alice Found There who tells a surprised Alice: "Here, you see, it takes...
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David Queller and Joan Strassmann, evolutionary biologists at Rice University, recently proposed a new way to describe what makes an organism a unified whole. They defined an organism as an entity made up of parts that cooperate well for an overall purpose, and do so with minimal conflict. But how do parts like these get together, and where does purposeful behavior come from?...
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With millions of eyes on Copenhagen, this seems an appropriate time to ask whether ID thinking has any relevance to understanding the Earth's environment. Can design concepts help us weigh the diverse and often conflicting messages? I think ID is helpful, because features of the Earth's environments and ecologies start to take on new meaning. In this blog, I am thinking particularly of negative feedback mechanisms. Human design engineers will use negative feedback to promote stability and positive feedback to amplify an input signal. They select the mechanisms they need to achieve the desired effect. By analogy, if the Earth...
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Ancient DNA retrieved from extinct horse species from around the world has challenged one of the textbook examples of evolution - the fossil record of the horse family Equidae over the past 55 million years. The study, published today in the Proceedings of the National Academy of Sciences, involved an international team of researchers and the Australian Centre for Ancient DNA (ACAD) based at the University of Adelaide. Only the modern horse, zebras, wild asses and donkey survive today, but many other lineages have become extinct over the last 50,000 years. ACAD Director Professor Alan Cooper says despite an excellent...
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The Mediterranean Sea as we know it today formed about 5.3 million years ago when Atlantic Ocean waters breached the strait of Gibraltar, sending a massive flood into the basin. > But exactly how the waters cut their way through and how long it took them to do so wasn't known. >
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“Darwin’s finches” are a variety of small black birds that were observed and collected by British naturalist Charles Darwin during his famous voyage on the H.M.S. Beagle in the early 1800s. Years later, Darwin argued that subtle variations in their beak sizes supported his concept that all organisms share a common ancestor (a theory known as macroevolution). The finches, whose technical name is Geospiza, have since become classic evolutionary icons...
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William Lane Craig is not only one of the world’s leading Christian apologists but he has actually made outstanding original contributions to philosophy. Yes, Craig publishes popular-level books. Unlike Dawkins, however, who in 20-years plus has been purely a popularizer (of Darwinian evolution, materialist science, and atheism), Craig continues to publish at the highest levels of the academy addressing scholars of the highest caliber (and gaining their respect). Dawkins, by contrast, increasingly appeals to the lowest common denominator. It’s in this light that Dawkins glib dismissal of Craig should be viewed: CLICK ABOVE LINK FOR THE SHORT VIDEO OF DAWKIN's...
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Bird influenza viruses have a variety of strategies to cross the species barrier and spreadThe 2009 H1N1 influenza virus used a new strategy to cross from birds into humans, a warning that it has more than one trick up its sleeve to jump the species barrier and become virulent. In a report in this week's early online edition of the journal Proceedings of the National Academy of Sciences, University of California, Berkeley, researchers show that the H1N1, or swine flu, virus adopted a new mutation in one of its genes distinct from the mutations found in previous flu viruses, including...
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esearch has shown that humans like to help, even before they are old enough to have been taught how to do so. This innate characteristic distinguishes humans from their supposed closest evolutionary family member, the chimpanzee, which doesn’t demonstrate the same altruistic behavior. In studies on the subject, at only 18 months old, toddlers were observed to consistently aid unrelated adults in simple tasks such as opening a door or picking up a clothes pin. Researchers assumed then that altruism, or unselfish concern for the welfare of others, evolved early in humans. But does this conclusion necessarily follow from the...
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Percentage of Americans who believe in angels: 55 Percentage of Americans who believe in evolution: 39 Percentage of Americans who believe in anthropogenic global warming: 36 Percentage of Americans who believe in ghosts: 34 Percentage of Americans who believe in UFOs: 34
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This recent BBC News header[1] was typical of the news headlines worldwide on the story: Michelle Obama racist image sparks Google apology Apparently, the image referred to was a photograph of Mrs Obama that had been manipulated to give her the facial features of a monkey. I say “apparently”, because the mock-up photo no longer appears as the #1 ranking on Google’s list of image search results for “Michelle Obama”.[2] It is very clear however from the news reports of the “race row”[3] that in the last days that the picture was Google-accessible, it stirred many people. Such was the...
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