This Lake Has Hundreds of Skeletons, and We Don't Know Why

If you knew about an isolated mountain lake that was ringed with a whole bunch of human skeletons that no one had retrieved, you might think about avoiding that area, lest you become one of them. But that's not quite the case at Roopkund Lake, also called Mystery Lake or Skeleton Lake, at 16,470 feet of elevation in northern India. Plenty of Himalayan hikers have visited the site, and rearranged the skulls and bones found there.

An ancient tale tells of a royal entourage on a pilgrimage that was caught in a hailstorm near the lake and were all killed. But scientists have found evidence that whatever disaster befell those people happened more than once, and hundreds of years apart. Not only that, the dead of Roopkund Lake came from different corners of the earth! What happened to them? And where were they going? Savannah Geary of SciShow tells us what we now know and what we don't know about the Roopkund Lake skeletons. There's a 45-second skippable ad at 4:05.