Using the thigh bone of a Neanderthal female, 63% of the Neanderthal genome was uncovered and 3.7 billion bases of DNA were decoded. It showed that "Homo neanderthalensis" was the closest living relative of "Homo sapiens," until the former lineage died out 30,000 years ago. The Neanderthal genome was shown to be within the range of variation of those of anatomically modern humans, although at the far periphery of that range of variation. Paleogenetic analysis also suggests that Neanderthals shared more DNA with chimpanzees than "homo sapiens". It was also found that Neanderthals were less genetically diverse than modern humans are, which indicates that "Homo neanderthalensis" grew from a group composed of relatively few individuals. DNA sequences suggest that "Homo sapiens" first appeared between about 130,000 and 250,000 years ago in Africa.