Learn why both human teeth and an ancient fish contain a key sensory substance — but in different locations.

Teeth are sensitive because they evolved from sensory tissue in both ancient vertebrates and ancient arthropods.

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

Abscess If you notice a painful bump on the roof of your mouth, it could be an abscess—an infection that forms when bacteria ...

Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds ...

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 ...

Sharks were always known as silent hunters, but a new sound is challenging everything marine biologists once believed.