Killer whale attacks a SeaWorld trainer in dramatic footage.

Orcas have been observed ramming boats and even sinking some of them. But this isn't new. Here's a video from 2014 of a pod of orcas chasing a speedboat.

When three killer whales struck the Lady L, Heath Samples thought a tanker had collided with his yacht, as everyone on board was knocked off their feet. After the orcas repeatedly buffeted the yacht, ...

The killer whales ripped the liver out of a shark and passed it around—only the second time orcas have been seen engaging in ...