National Geographic Documentaries

Sex in the Stone Age (2012x15)

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Scientists decode the DNA of a bone pulled from a Siberian cave revealing a previously unknown species of hominid that lived at the same time and place as modern humans; and interbred with them. They are a part of us we never knew existed. What did these "people" look like? And how do they fit into what we thought we knew about our biological development as a species?