National Science Scientists determine age of some of the oldest human bones 5:22pm January 13, 2022 Research News Science History National Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2022 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered World News National Former Brazilian president indicted over alleged coup plot Education National This year's FAFSA is officially open. Early review says it's 'a piece of cake' 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate