The Entelodont, the largest prehistoric pig to inhabit North America in the Eocene Period, could grow up to the size of a ...

Grizzly bears, standing up to 8 feet tall and weighing between 180 to 900 lbs, are among the largest bear species, with males being up to three times larger than females. However, there are five bear ...

The bear was euthanised by Yellowstone National Park staff around 5 p.m. on July 11, following "a series of concerning incidents." ...

National park officials euthanized the adult sow after weeks of concerning behavior that was escalating in severity.