A secretive, hard-to-spot weasel-like animal, the fisher, has made a noticeable return to Pennsylvania after being deemed extinct in the state. A trail camera in Westmoreland County captured a fisher ...

The Christmas Island shrew, a species of cone snail (Conus lugubris), the slender-billed curlew, and three Australian mammals ...

Imagine a world where near-extinct species roam the streets and forests like they would have millennia ago. That's the goal of 'rewilding' — the practice of reintroducing native species to their ...

(Reuters) - When researchers excavated fossilized fragments of a rod-shaped bone 3-1/2 inches (88 mm) long at a site called Mata Menge on Indonesia's Flores island, the pieces initially were bagged ...