Giant Beavers the Size of Black Bears Once Roamed North America Vanished Suddenly 10,000 Years Ago, Scientists Know Why Giant ...

Carnivores would be cool. One of my favourite extinct species is a thing called Arctodus, the giant short-faced bear, which stood 14ft tall, and a giant beaver that lived in North America ...

In prehistoric North America, the short-faced bear ... When a giant fossilized claw was discovered in West Virginia in the late 1700s, there was great excitement over what extinct animal it ...

But the true size and shape of this extinct giant probably doesn't resemble the star of "Jaws." Scientists have long debated the true size of the megalodon (Otodus megalodon), which went extinct ...