Nervy human teeth arose from ancient armored fish scales : NPR

Science

Nervy Human Teeth Arose From Ancient Armored Fish Scales : Npr

By NPR

That zing in your teeth from a cold treat? Blame this ancient armored fish toggle caption Brian Engh/www.livingrelicproductions.com Yara Haridy, an evolutionary biologist at the University of Chicago, likes to stun people by telling them that our ske ...Read more