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

Cetaceans can be split into two main types: baleen whales (which have a sieve-like structure within their mouth to catch tiny fish when they take a gulp of water) and toothed whales (which eat prey ...

WARNING, GRAPHIC CONTENT: The footage shows several orcas taking turns with the carcass, highlighting their cooperative hunting and food-sharing behavior ...