You probably don’t think much about teeth until a dentist brings them up. But across the animal kingdom, tooth counts can get wild fast.

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

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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, ...

Scientists have long thought that mechanical considerations drove the animals to passively gnaw on hard materials, says study ...

How the dental mold works: Researchers take impressions of fish teeth, using a fish called Polypterus as an example; (A) 3D model of the mold showing mandibular/lower side, maxillary/upper side, and ...

When you consider animals that have a lot of teeth, sharks are likely to be the first ones that come to mind, since they can grow and shed thousands of teeth in their lifetime. However, as shocking as ...

A new analysis of one of the most bizarre-looking fossils ever discovered has definitively sorted its head from its tail, and turned up a previously unknown ring of teeth, which could help answer some ...

(CNN) — 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. While our teeth ...