All That's Interesting on MSN3d
11 Of Ancient Earth’s Most Unbelievable Prehistoric Animals
For nearly 30 million years, a 2,000-pound beast known as the entelodont ruled a sweeping empire from Mongolia to what is now ...
Hosted on MSN2mon
8 Extinct Creatures That Might Actually Still Exist
While officially extinct for 3.6 million years ... Imagine encountering a bear-sized sloth that can stand on its hind legs. The Mapinguari, a creature reported in South American rainforests ...
CBC.ca7y
From dire wolves to giant bears: Meet the North American animals of the ice age
In prehistoric North America, the short-faced bear (Arctodus simus ... but to a massive, cumbersome sloth (Megalonyx jeffersonii). Not cute and endearing like present-day sloths in South America ...
The Columbian1mon
Giant sloths and mastodons lived with humans for millennia in the Americas, new discoveries suggest
SAO PAULO (AP) — Sloths weren’t always slow-moving, furry tree-dwellers. Their prehistoric ancestors were huge — up to 4 tons — and when startled, they brandished immense claws.