Humans and Neandertals mated more recently than thought

COLD SPRING HARBOR, N.Y. — A Neandertal was the great-great-great-great-grandparent of a man who lived between 42,000 and 37,000 years ago in Romania.

DNA extracted from the bones of a human man known as Oase 1 contains 4.8 to 11.3 percent Neandertal DNA arranged in long stretches, Qiaomei Fu of Harvard University reported May 8 at the Biology of Genomes meeting. The large amount and long stretches of Neandertal DNA indicate that the man had a Neandertal relative four to six generations back in his family tree.

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