University of Washington scientists have made a remarkable discovery: real teeth growing on the forehead of a deep-sea ratfish. This finding sheds light on the unique adaptations in fish anatomy, ...

Can we examine the teeth of living fish and other vertebrates in detail, repeatedly over time, without harming them? Previously, small animals often had to be euthanized to obtain precise information, ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish to the formidable, pointed teeth of sharks. But fish evolved from toothless ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The sensitive ...

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.

Why are our teeth so sensitive? The answer originates in the armored skin of ancient fish. If you’ve ever experienced dental pain, you've probably wondered why our teeth would evolve to function like ...

Add Yahoo as a preferred source to see more of our stories on Google. drawing of green, scaly fish against blue background© Apokryltaros/CC-BY-SA The post A 400-Million-Year-Old Fish Smile Is Changing ...