Not cute and endearing like present-day sloths in South America, these sloths were one of the strangest animals of the ice age. They weighed as much, or more, than the short-faced bear at 1 tonne ...

Although the franchise as a whole has been slowly shifting focus from its original main characters throughout ... of ...

The paintings include depictions of what appear to be now-extinct animals, such as the mastodon, a prehistoric relative of the elephant, and giant sloths and Ice Age horses, researchers say.