Variety spices up Neandertals’ DNA

A surprising amount of genetic diversity characterized Neandertals, the Stone Age species with a disputed place in human evolution, a research team reports. The new finding stems from a small piece of DNA recovered from a 100,000-year-old Neandertal tooth previously found at the Scladina cave in Belgium.

Until now, DNA has been retrieved from Neandertal fossils dating to no more than 42,000 years ago (SN: 5/17/03, p.