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 ...

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

The sensitive interior of human teeth might have originated from a seemingly unlikely place: sensory tissue in fish that were swimming in Earth’s oceans 465 million years ago.

The cutting edge modern imaging used ... of Organismal Biology and Anatomy at the University of Chicago, in a statement. “So, here we see that invertebrates with armor like horseshoe crabs ...

The anatomy of these flakes of invertebrate armor resembled the teeth of vertebrates ... Haridy figured that modern-day fish might help her answer the question. So she looked at the tooth-like ...

DANIEL: And the structure she'd found in the armor of Anatolepis, the now arthropod, was for sensing. HARIDY: All this extra anatomy ... considered the embryos of modern-day sharks, skates ...