Standing over 11 feet tall and built for speed, Arctodus wasn’t just the largest bear ever—it was a predator so terrifying, early humans may have fled entire regions to avoid it.

Of all the bears to come and go during the group’s 23 million year old history, none had a bite more powerful than Agriotherium africanum – a ursid as large as today’s grizzly and polar bears that ...

Vertebra. Atlas USNM Number PAL641368 Place Allegany County, Maryland, United States, North America Published Name Arctodus pristinus Leidy See more items in Paleogeneral Mammals Terrestrial - ...

MONCKS CORNER — A diver scouring the bottom of the Cooper River found what scientists believe is the fossilized tooth from the largest prehistoric bear to roam North America. When Eric Proulx, an ...

A grizzly bear (the black dot in the middle of the photo) walking near the treeline in Yellowstone’s Hayden Valley. The quiet of my evening wildlife watching was suddenly broken by a thick Boston ...

Arctodus is an extinct genus of bear that lived during the Pleistocene epoch. They inhabited North America and died out about 11,000 years ago. Two species are known; Arctodus simus and Arctodus ...