A summer hike up to a 13,000-foot alpine meadow can be exhilarating. But what if you decided to stay up there for the rest of your life? The lack of oxygen, frigid temperatures, and sparse vegetation would make it tough. Archaeologists know hunter-gatherers traversed highland areas thousands of years ago, but presumed they also had to spend time in lowland areas in order to survive.
That idea is now being challenged by a team of researchers at the University of Wyoming who have made a rare discovery.