Animals from a variety of species were seen leaving the park in herds, causing fear of an eruption, but were noted as ‘migration’ by experts.

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 ...