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In Natures "15 evolutionary gems" evolution-evangelism packet, two of Nature's "evolutionary gems" looked at birds. The first such gem showed "Differential dispersal in wild birds" -- but before we get caught up in the jargon, let's just cut to the main question: What sort of evolutionary change was observed? From reading Nature's evolution-evangelism packet, one is told that the "findings illustrate the large effect of immigration on the evolution of local adaptations and on genetic population structure" or that "evolutionary differentiation can be rapid and occur over surprisingly small scales." So exactly what was this rapid, large evolutionary change?
Continue reading "Nature's Microevolutionary Gems Part 2: Bird-Sized Evolutionary Change" »
Early in 2006, the journal Science published a long article titled "Evolution in Action" purporting to give three examples showing the glory of Darwinian evolution. As I discussed at that time, what it really showed was "microevolution in action." Last year during the bicentennial anniversary of Darwin's birth, Nature tried to top Science by releasing a packet titled "15 Evolutionary Gems." The packet purported to show "just what is the evidence for evolution by natural selection." Yet much like the Science piece, many of the examples in the Nature packet entail trivial examples of small-scale evolution. This first installment of Nature's "microevolutionary gems" will look at the evidence cited there for evolution among lizards, snakes, clams, and birds.
Continue reading "Nature's Microevolutionary Gems Part 1: Lizards, Fish, Snakes, and Clams" »
Last year, during the bicentennial anniversary of Darwin's birth, Nature released a free online packet titled "15 Evolutionary Gems." Its subtitle was "A resource from Nature for those wishing to spread awareness of evidence for evolution by natural selection." It might have been better subtitled 'A evangelism packet for those wishing to spread the good news about Darwinism.' After all, when Nature announced the packet, they said they were heeding a prior call which "urged scientists and their institutions to 'spread the word'" about evolution and "highlight reasons why scientists can treat evolution by natural selection as, in effect, an established fact." The packet is to be used not just in schools, but also in home evangelism or relationship evangelism. At least, that's basically what Nature said:
This week we are following our own prescription. Readers will find at www.nature.com/evolutiongems a freely accessible resource for biologists and others who wish to explain to students, friends or loved ones just what is the evidence for evolution by natural selection. ... In a year in which Darwin is being celebrated amid uncertainty and hostility about his ideas among citizens, being aware of the cumulatively incontrovertible evidence for those ideas is all the more important. We trust that this document will help.
("Announcement: Evolutionary gems," Nature, Vol. 457 (January 1, 2009).)
If all that weren't enough, the back page of the packet shows a picture of a smiling young Darwin with animals flocking about him (lizards, birds, monkeys, flowers, sponges, turtles, etc.), much like the pictures of Jesus posing with lions and lambs on some cheesy religious tract. You have to see the packet to believe it:
Continue reading "Evaluating Nature's 2009 "15 Evolutionary Gems" Darwin-Evangelism Kit " »
Advocates of intelligent design have long been skeptical of the claim that the majority of our genome is nonfunctional gibberish, a mere relic of our evolutionary past. Many of the key arguments for common ancestry are based around the supposition that certain loci of our genome are functionless. But the gaps in our knowledge of the genome (in which such supposition resides) are continually shrinking.
A recent paper published in Science by Kondo et al. reported on the discovery that some of the supposed "non-coding" regions of the RNA transcript actually actively encode for short peptides that regulate genes involved in Drosophila development.
According to the Abstract,
A substantial proportion of eukaryotic transcripts are considered to be noncoding RNAs because they contain only short open reading frames (sORFs). Recent findings suggest, however, that some sORFs encode small bioactive peptides. Here, we show that peptides of 11 to 32 amino acids encoded by the polished rice (pri) sORF gene control epidermal differentiation in Drosophila by modifying the transcription factor Shavenbaby (Svb). Pri peptides trigger the amino-terminal truncation of the Svb protein, which converts Svb from a repressor to an activator. Our results demonstrate that during Drosophila embryogenesis, Pri sORF peptides provide a strict temporal control to the transcriptional program of epidermal morphogenesis.
Continue reading ""Junk" RNA Found to Encode Peptides That Regulate Fruit Fly Development" »
Another school year is set to begin at high schools and colleges where the next round of biology students will be filled with evolutionary misinformation. At the center of this propaganda campaign are the many biology textbooks used to indoctrinate young minds with old dogma. These textbooks contain the latest evolutionary newspeak, but the underlying lies are no different.
In their text The Living World (Fifth Edition, McGraw Hill, 2008) evolutionary apologists George Johnson and Jonathan Lobos rehearse the usual lies. Students are told that "Microevolution Leads to Macroevolution" with the giraffe's neck serving as the example of how small change is supposed to accumulate to the large-scale change evolution needs.
Of course this is a long-standing, well-known problem for evolution. Mechanisms for large-scale change are speculative for it does not appear merely to be the result of repeated rounds of microevolution. Johnson and Lobos, of course, inform the student of none of this.
Continue reading "Back to School: Do You Know What Your Child Is Learning? " »
Recently, Nick Lane, a biochemist and Provost's Venture Research Fellow in the Department of Genetics, Evolution and Environment at University College London, published a new book, Life Ascending: The Ten Great Inventions of Evolution.
Nick Lane lays out ten biological phenomena for which he seeks to propose plausible evolutionary explanations. Among the phenomena discussed by Lane are the origin of life, DNA, photosynthesis, the complex cell, sex, movement, sight, hot blood, consciousness, and death. But does Darwinism have the goods? Or does Nick Lane offer us only a series of wishful speculations?
New Scientist offered the following praise for Lane's work:
What makes this such a great read is that Lane, a biochemist by training, does not simply rehash the standard evolutionary tales - unlike many books published recently. Instead, he is familiar with all the latest research and has made up his own mind about who is right. The result is an original and awe-inspiring account. The first two chapters are the most coherent and convincing summaries of the dawn of life and of DNA that I have ever read.
Continue reading "Nick Lane Takes on the Origin of Life and DNA" »
The literature continues to flood in demonstrating that so-called 'junk' regions of the genome are not junk after all, but serve significant and important functions. One such recent paper reports evidence that retrotransposons may play significant roles in the cell. According to the abstract,
Retrotransposons including endogenous retroviruses and their solitary long terminal repeats (LTRs) compose >40% of the human genome. Many of them are located in intergenic regions far from genes. Whether these intergenic retrotransposons serve beneficial host functions is not known. Here we show that an LTR retrotransposon of ERV-9 human endogenous retrovirus located 40--70 kb upstream of the human fetal γ- and adult β-globin genes serves a long-range, host function. The ERV-9 LTR contains multiple CCAAT and GATA motifs and competitively recruits a high concentration of NF-Y and GATA-2 present in low abundance in adult erythroid cells to assemble an LTR/RNA polymerase II complex. The LTR complex transcribes intergenic RNAs unidirectionally through the intervening DNA to loop with and modulate transcription factor occupancies at the far downstream globin promoters, thereby modulating globin gene switching by a competitive mechanism.
Retrotransposons include the long interspersed nuclear elements (LINEs), short interspersed nuclear elements (SINEs), endogenous retroviruses (ERVs), and the solitary long terminal repeats (LTRs) of ERVs, and compose over 40% of the human genome. Retrotransposons contain promoters and enhancers and can aid in promoting mRNA synthesis of the immediately downstream host genes. The cited paper seeks to determine whether the retrotransposons which are located in the intergenic (regions which intersperse genes, also known as 'introns') of the genome - which are often several hundred kilobases removed from the promoters - serve any beneficial function.
Continue reading "The 'Junk DNA' Paradigm Continues To Collapse As New Functions Are Discovered For Retrotransposons" »
A May, 2010 editorial in Nature Immunology makes it clear that they don't trust religious persons--even those who are neo-Darwinian evolutionists like Francis Collins--in positions of scientific authority. The editorial (written by the journal's editors) states: "The openly religious stance of the NIH director [Francis Collins] could have undesirable effects on science education in the United States. ... In the introduction and in interviews surrounding [Collins'] book release, he describes his belief in a non-natural, non-measurable, improvable deity that created the universe and its laws with humans as the ultimate aim of its creation. Some might worry that describing scientists as workers toiling to understand the laws and intricacies of this divine creation will create opportunities for creationism adepts."
("Of faith and reason," Nature Immunology, Vol. 11(5):357 (May 2010).) Aside from the fact that Nature Immunology's editors are apparently unashamedly intolerant of religion, we must ask whether we should trust Nature Immunology to instruct Americans on science education. They write:
Continue reading "Nature Immunology Editorial Botches American Law and Science Education" »
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Groundbreaking ID Book
