Tourists on a whale-watching boat off Australia witnessed five families of killer whales attack 150-ton mammal.

The heaviest blue whale ever recorded was a victim of whaling, caught in Antarctic waters in 1947. She weighed a whopping 418,878 pounds, which is about the weight of 2,500 average adult humans.

Blue whales are not only the largest animal on earth today but the largest known animal ever to have lived on earth. The ...

The nautical networking paid off in the summer of 1903, when whalers at Hermitage Bay brought in a 78-foot-long, 70-ton adult male North Atlantic blue whale. Waiting on the boat ramp, True’s ...

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

A gang of more than 60 orcas brutally attacked and killed a 59-foot-long (18 meters) pygmy blue whale, leaving a nearby whalewatching tour shocked, new video footage shows. The dramatic incident ...