A Basilosaurus isis skeleton (not the one from the study) on display at France's Museum d'Histoire ...

Topping out at a length of about 8 meters (26 ft), the killer whale (or orca) is the ocean's top predator – it even goes after other kinds of whales. With that in mind, just imagine what fun a 15-meter (49-ft) predatory whale would be. That's the approximate skeletal length of Basilosaurus isis, a prehistoric toothed whale that is now believed to have likewise fed on its fellow whales.

Continue Reading Study suggests that giant prehistoric whale ate other whales

Category: Biology