So here's the first "other prehistoric beast" addition to the Dinosaurs (And Other Prehistoric Beasts) section of the site.
Imagine the biggest grizzly bear around, a thousand pound bruiser who can bring down a moose and fight off an entire pack of wolves. Then super-size it and pump some steroids into it and you've got this guy, The Giant Short-Faced Bear.
The Short-Faced Bear lived from about 3 million years ago to about 11,000 years ago. At fifteen feet tall and over two thousand pounds, in a time of sabertooth cats and giant terror birds, this guy was king, the monster who gave other monsters nightmares.