What are the ancestors of polar bears?

The ancestors of polar bears were called Irish brown bears.

DNA research shows that the ancestors of all polar bears are the last glaciers.

A female brown bear who lived in Ireland at the time (1 1 ten thousand years ago). scientist

Said that although polar bears-about 200,000 years ago were made up of different populations in Siberia.

Brown bears have evolved long before that, but this brown bear.

The blue-brown bear is the earliest ancestor of the known polar bear.

The researchers extracted DNA samples from the bones and teeth of 242 brown bears and polar bears.

Including modern bears and fossils of bears 6.5438+0.2 million years ago.

According to a study published in the journal Current Biology, the mitochondria of modern polar bears

This DNA is highly matched with the genetic material of female brown bear who lived in Ireland 20,000 to 50,000 years ago.

Except for the color of skin and coat, polar bears are bigger than brown bears and have teeth.

The tooth structure is also different. Polar bears live in the North Pole and are good at swimming, while brown bears live in the North Pole.

He is good at climbing trees in the mountain jungle.