Only 7% of the teeth showed any connection to non-Arctic Native Americans. "We found that the human biology simply doesn’t match up with the archaeological theory," said Professor Scott.

Jomon teeth vs Native American teeth. (CREDIT: G. Richard Scott, University of Nevada Reno) Moreover, a separate archaeological discovery in New Mexico unveiled human footprints dating back 23,000 ...

It's Native American Heritage Day. NPR's Steve Inskeep talks to Ned Blackhawk, a professor of History and American Studies at Yale, about the history of the day and what it means to observe it.