Interviewee: Stephen Oppenheimer. Geneticist Stephen Oppenheimer talks about the climatic and physical obstacles faced by humans migrating out of Africa. (DNAi Location: Applications > Human origins > Migrations > Videos > taking the southern route )

At the time they [modern humans out of Africa] crossed which, in my model is around 80,000 years ago, it [the Sahara Desert] would've been even drier than it is now. So having crossed through the southern route [out of Africa], they could only continue onwards, down into India, and they probably took the coastal route, round the Indian Ocean, and eventually down to Australia and New Guinea.

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