Add Yahoo as a preferred source to see more of our stories on Google. Fossils of an ancient shark species have been discovered in a Kentucky cave, officials announced during Shark Week. The Discovery ...

PHOENIX — Just when you thought it was safe to go back to northern Arizona comes word that sharks used to roam around Flagstaff. It was a long, long time ago. “[About] 260 million years ago, there was ...

As Earth shifts to climates not seen for several hundred thousand years, we may need to look at ancient environments for ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're excited about Discovery's "Shark Week" and the celebrations around the 50th anniversary of the classic "Jaws" film, ...

A great white shark is a masterwork of evolutionary engineering. These beautiful predators glide effortlessly through the water, each slow, deliberate sweep of the powerful tail driving a body ...

STANFORD, Calif. (KGO) -- If you ever come face-to-face with the wrong kind of shark, there's something you probably want to avoid. Just a hint: they're long and really sharp. But now, researchers at ...

Bull sharks (Carcharhinus Leucas) are one of the ocean’s most fearsome creatures. Although some animals may prey on bull sharks, such as crocodiles, killer whales, and the occasional great white shark ...

The animal kingdom is no stranger to astonishing abilities, including the remarkable power to regenerate lost or damaged body ...