A hybrid grolar bear saga is unfolding in the Arctic, and the tale of this strange family has much to tell us about nature on ...

Researchers say the findings, the first documented case of rising temperatures driving genetic change in a mammal, offer a ...

Polar bear meets grizzly bear. They hit it off and have babies. Enter the grolar bears. Or pizzly bears, as some like to call them. It might sound like a BS made-up story, or something from Happy Feet ...

All polar bears alive today are descended from a single female brown bear who most likely hailed not from Alaska -- as widely presumed -- but from Ireland, scientists announced in July. The discovery, ...