Polar bears' ancient roots pushed way back | Science News

Be a Champion for Science

Get your subscription to

Science News when you join.


Polar bears' ancient roots pushed way back

Genetic blueprints suggest the animals arose millions of years ago

3:01pm, July 23, 2012

The polar bear has been around for a surprisingly long time. A new analysis of its DNA suggests that Ursus maritimus split from the brown bear between 4 million and 5 million years ago — around the same time when, some scientists believe, the Arctic’s thick sea ice first formed.

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from this issue of Science News