New Scientist

Image: John Olsen

Humans arrived on the Tibetan Plateau tens of thousands of years earlier than we thought. This raises the possibility that the first humans to cope with the harsh conditions there were not modern humans, but the ancient Denisovans.

The Tibetan Plateau is a tough environment. The average annual temperature is close to 0 °C, and on average it’s 4000 metres above sea level so the air is difficult to breathe. Most researchers assumed that humans didn’t move onto the Tibetan Plateau until just 12,000 years ago – and only occupied it permanently about 3600 years ago.

An archaeological site called Nwya Devu suggests otherwise. The site, which is on the Tibetan Plateau 4600 metres above sea level, has yielded thousands of stone tools, albeit few organic remains. Read more on newscientist.com…