CT scan of the front of a skate, showing the hard, tooth-like denticles on its skin (shown in orange). Credit: Yara Haridy CT scan of the front of a skate, showing the hard, tooth-like denticles on ...

Add Yahoo as a preferred source to see more of our stories on Google. A CT scan of the tooth-like odontode structure from Astrapsis, an ancient jawless vertebrate fish shows that its tubules (shown in ...

A shimmering ancient fossil unearthed in New York state looks like a piece of finely crafted jewelry, but it’s also a portal into the natural world 450 million years ago. The striking fossil is a ...

Archaeopteryx is the fossil that clearly demonstrated Darwin's views. It's the oldest known fossil bird, and it helps show that all birds -- including the ones alive today -- emerged from dinosaurs.

CT scan of the tooth-like-odontode structure from Astrapsis, an ancient jawless vertebrate fish. The tubules (shown in green) are filled with dentine, the same material that makes up the sensitive ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SCOTT CITY, Kan. (KSNW) — A recent ...

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(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 ...