Takeshi Morita (@takeshimorita.bsky.social)

Teeth first evolved as sensory tissue in the armored exoskeletons of ancient fish, fossil scans find Anyone who has ever squirmed through a dental cleaning can tell you how sensitive teeth can be. This sensitivity gives important feedback about temperature, pressure—and yes, pain—as we bite and chew ... https://phys.org/news/2025-05-teeth-evolved-sensory-tissue-armored.amp