Polar bear's ancestor is Irish brown bear, study finds
Thursday, July 7, 2011 - 19:31
in Earth & Climate
Contrary to belief, the polar bear is not descended from an Alaskan brown bear, scientists say. They say modern polar bears' DNA most closely resembles that of extinct brown bears in Ireland.All polar bears alive today are descended from a female brown bear that most likely hailed not from Alaska, as widely presumed, but from Ireland, scientists said.