In 2010, DNA analysis of a 40,000-year-old finger bone revealed that it came from a previously unknown group of ancient humans, dubbed the Denisovans after the cave in Siberia where the bone was found. Since then, Denisovan DNA has been found in a skull discovered in China, and other, older skulls have been found. The mystery of the Denisovans is starting to unravel. In this interview, paleoanthropologist Chris Stringer at the Natural History Museum in London explores what we know about Denisovans and what they tell us about our own family tree.
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