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Genetics

Ghost worms unchanged in form for 275 million years but show “highly distinct” genetics?

One wants to ask, how distinct ARE the genomes of these species that all look the same? Would it be like mapping a cat’s genome and finding a German Shepherd’s GATTACA in there? What that level of distinction really tells us goes well beyond cats and German Shepherds. Or do the researchers really mean something less highly distinct? What? We search for analogies here. Read More ›

One of the biggest science stories of the last decade: The Descent of Man gets crowdsourced

Those old Descent of Man charts were sometimes fun, showing a bacterium ending up as some poor slob hunched over a workstation. Some sort of moral was always pounded into us by these tales, usually not an uplifting one. But real history is always better and more interesting. Read More ›

The larger lesson from the story of the Man With Two Fingerprints

Remember when DNA was Certain? When people were executed or spent life in prison on account of DNA evidence? “Your DNA is on it” was like Holy Writ. DNA was the guarantor of the Darwinian selfish gene. And now… The worst thing that ever happened to Darwinism was DNA mapping. Read More ›

Bacteria harpoon DNA from their environment, to fight antibiotics

Wait. What does this story remind us of? Oh yes, recently a writer at The Atlantic went so far as to express doubt about the claim of a Darwin-in-the-schools lobbyist that everyone needs to buy into their approach to evolution if we want to understand superbugs. Read More ›

Big Data study of termites forces rethink of their evolution

“Often, researchers construct a phylogeny using a single gene. This can, however, give an inaccurate picture of the relationship between species -- and can incorrectly place them.” So the industrious team studied “used up to 4065 genes from each termite species to construct the phylogeny.” Good for them. But it raises the question, why—in the age of Big Gene—doesn’t everyone do that, instead of loudly proclaiming an evolutionary history based on a handful of genes? One is much less inclined to dismiss the evidence of thousands than a handful. Read More ›