A jawbone shows Denisovans lived on the Tibetan Plateau long before humans
All previously known fossils from the mysterious hominids come from a Siberian cave
![jaw bone](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/05/043019_bb_jaw_feat.jpg?fit=860%2C460&ssl=1)
HIGH BONE A partial jawbone found in a Tibetan Plateau cave comes from a Denisovan, suggesting that these hominids were the first to conquer especially high altitudes 160,000 years ago or more, researchers say.
Dongju Zhang/Lanzhou University