When you think of gladiators, you probably picture men with swords. But in Roman arenas, the opponents gladiators faced weren ...

A male California sea lion at Año Nuevo Reserve. (Photo by Ana Valenzuela Toro) California sea lion skulls used in the study were collected by the late Ray Bandar of San Francisco and are now in the ...

Grizzly and black bears remind humans that we are not at the top of the food chain in Alaska. Ancient Alaskans shared the grasslands with possibly an even more terrifying predator — the American lion.

A Butte County couple on a California flight told plain-clothed wildlife officers they were carrying an illegal sea turtle skull in their luggage. California Department of Fish and Wildlife officers ...