The episode, witnessed off the Australian coast, offers a rare glimpse into the brutal efficiency of the ocean’s top predator.

Blue whales lunge through large swarms of krill with their mouths open, taking in more food in one mouthful than any other animal on Earth. Krill make up the vast majority of a blue whale's diet ...

a second humpback whale charges past the diver with its mouth open, narrowly avoiding striking Dersch with its gargantuan maw. As the humpback whale swims through the shot, the whale's tail passes ...

Five families of orcas joined forces to hunt down and feed on a blue whale, the largest creature on the planet, in what was an extremely rare sighting off Australia. More than 60 orcas worked ...

SEATTLE — It's a good thing seals aren't on a humpback whale's menu. A photograph by a whale-watching naturalist captured a seemingly bewildered seal in the mouth of a humpback whale after the ...

Rainer Schimpf, 51, was diving off the coast of South Africa with a documentary crew in February when the breaching whale reached the surface, its mouth wide open. “It got dark and I felt some ...