Science Over 4,400 preserved human brains have been discovered across the world, study finds 10:41am March 23, 2024 by Scott Simon Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2024 NPR. To see more, visit https://www.npr.org. 300x250 Ad 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate