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What would it have been like to meet a Neandertal? Researchers have hypothesized answers for decades, seeking to put flesh on ancient bones. But fossils are silent on many traits, from hair and skin color to speech and personality. Personality will have to wait, but in a paper published online in Science this week (www.sciencemag.org/cgi/content/abstract/1147417), an international team announces that it has extracted a pigmentation gene, mc1r, from the bones of two Neandertals. The researchers conclude that at least some Neandertals had pale skin and red hair, similar to some of the Homo sapiens who today inhabit their European homeland....

The gene known as MC1R suggests the Neanderthals had fair skin and even freckles like redheads. After analysing the fossil bones found in a cave in north-west Spain, the experts concluded they had human blood group "O" and were genetically more likely to be fair skinned, perhaps even with freckles, have red or ginger hair and could talk... The report, published in BMC Evolutionary Biology, concludes that: "These results suggest the genetic change responsible for the O blood group in humans predates the human and Neanderthal divergence" but came "after humans separated from their common ancestor ... chimpanzees." ...One gene...

WASHINGTON (Reuters) - A gene that separates humans from the apes and all other animals seems to have disappeared from humans up to three million years ago, just before they first stood upright, researchers said on Monday. Most animals have the gene but people do not -- and it may be somehow involved in the expansion of the brain, the international team of researchers said. The gene controls production of a sialic acid -- a kind of sugar -- called Neu5Gc, the researchers write in an advance online issue of the Proceedings of the National Academy of Sciences ( news...