Take a break from everything and look at a cheerful white bear | Awesome Science
Take a break from everything and look at a cheerful white bear
Scientists believe that the polar bear evolved about 200,000 years ago from the ancestors of the brown bear. Both polar and brown bears are the largest land predators. But most experts agree that polar bears are still superior to brown ones - it is their males that can reach more than 3 meters, standing on their hind legs.
