Scientists found shark teeth inside fossil whale skulls, revealing how sharks fed on whales millions of years ago.

THIS is the shocking moment a pack of killer whales tear a shark to pieces, feasting on its remains. Terrifying footage shows ...

In this illustration provided by Ruairidh Duncan a Janjucetus dullardi is depicted chasing a fish. (Ruairidh Duncan via AP) WELLINGTON, New Zealand (AP) — Long before whales were majestic, gentle ...

Blue whale calves enter the world already the size of a bus, yet they still face danger. A hungry killer whale sees a slow, ...

Long before whales were majestic, gentle giants, some of their prehistoric ancestors were tiny, weird and feral. A chance discovery of a 25-million-year-old fossil on an Australian beach has allowed ...

WELLINGTON, New Zealand (AP) — Long before whales were majestic, gentle giants, some of their prehistoric ancestors were tiny, weird and feral. A chance discovery of a 25 million-year-old fossil on an ...