A biotech company made history with the birth of three genetically engineered wolves: What we know about these prehistoric ...

If you thought polar bears were big, just wait until you see this prehistoric giant. In the current age, we have seen massive bears, including the largest bear ever caught in the U.S., which ...

Australia’s giant Protemnodon kangaroos didn’t die out everywhere at the same time. Instead, extinction proceeded one habitat ...

The great white polar bear is the youngest and largest of the world's bear species — a mighty hunter and fierce defender of its young that's among the world's most vulnerable animals. Two-thirds of ...

Grizzly bears are extinct in California but still show up ... and roll off the tip of our tongue in place names like Grizzly Flats and Big Bear Lake. But what if the real ursine deal could be ...