Cave containing earliest human DNA dubbed historic

A cave in Oregon's high desert where archaeologists have found the earliest DNA evidence of human habitation in North America has been added to the National Register of Historic Places.

Prehistoric humans not wiped out by comet, say researchers

(Phys.org)—Comet explosions did not end the prehistoric human culture, known as Clovis, in North America 13,000 years ago, according to research published in the journal Geophysical Monograph Series.