On the latest Clovis research:

The Clovis hunters, some of the earliest human settlers in North America, were not around for long, new research suggests. But they made the most of the time they had.

The Clovis culture, named for the New Mexico site where its distinctive spear points were first discovered, spread across North America in just 200 years, according to Texas A&M’s Michael Waters.

And then it was gone, as its practitioners adapted to a changing world.