A new study reveals that the sensitivity of teeth, which makes them zing in a dentist's chair or ache after biting into something cold, can be traced back to the exoskeletons of ancient, armored fish.

The sometimes uncomfortable sensations we feel in our teeth may be an evolutionary holdover from the scaly exteriors of ...

The alligator gar is a massive, ancient fish found in U.S. rivers and lakes. With its armor-like scales and gator-like snout, it looks terrifying—but it plays a vital role in freshwater ecosystems.

That’s because it’s just a smattering of these tiny bumpy flakes, “thought to be the scales of this ancient fish-like thing,” forming a kind of armor. Because the Anatolepis fragments hadn ...

Scales are small, hard plates that protect an animal's skin. Learn all about the 12 types of animals with scales here!

New research from the University of Chicago shows that dentine, the inner layer of teeth that transmits sensory information ...

A new study reveals that the sensitivity of teeth, which makes them zing in a dentist's chair or ache after biting into something cold, can be traced back to the exoskeletons of ancient, armored fish.

Sensory features on the armored exoskeletons of ancient fish may be the reason why humans have teeth that are sensitive to ...

“So, there’s sensitive armor in these fish. There’s sensitive armor in ... that hard tissues like dentine and structures like scales and teeth evolved (primarily) for protection on the ...

HARIDY: Thought to be the scales of this ancient fish-like thing. DANIEL: Forming a kind of armor - the Anatolepis fragments hadn't been imaged in detail before, so Haridy and her team booked time ...

If you've ever gotten a toothache from eating something cold like ice cream, scientists at the University of Chicago might ...