This image shows the proportion of high-altitude ancestry (red) to low-altitude ancestry (green) in Sherpa, three groups of Tibetans, and lowland East Asians.
Sherpani is shown taking a rest along a trail at 3,800 m in the Khumbu District of Nepal and had carried loads to earn cash outside of the trekking season.
Thame village at 3,800 m in the Khumbu District of Nepal is the home of many outstanding Sherpa climbers and was a site of data collection for the present study.