Great Horned Owls and crows have one of the most intense rivalries in the bird world - and it’s not just noise and bluff. In ...

Chris Driesbach, left, and a volunteer stand over a whale fossil found along the Gaviota Coast. Driesbach, a geologist and ...

Chris Driesbach, left, and a volunteer stand over a whale fossil found along the Gaviota Coast. Driesbach, a geologist and ...

A new study reveals that a prehistoric sea cow was preyed upon by two different carnivores: a crocodile and a shark.

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...