We know from DNA testing that all modern humans whose ancestry originates outside of Africa share up to 4% of their genome with Neanderthals. Certain populations such as Papua New Guineans and Australian Aboriginals, share about 4% of their DNA with Denisovans. It was quite a revelation when scientists were able to prove that humans and Neanderthals inter-acted and mated. My DNA test kit reveals that I have 3% Neanderthal DNA.
Studies suggest that interbreeding went on between the members of several ancient human-like groups in Europe and Asia more than 30,000 years ago, including an as-yet-unknown human ancestor from Asia.
Continue reading this story at Mystery Humans Spiced Up Ancient's Sex Lives
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