Tourists and researchers on a whale-watching boat off the coast of Western Australia got a little more action than they ...

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

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 ...

These songs are within the hearing range of orcas and can potentially be used to track down their prey. Other songs, like those of blue and fin whales, are low-pitched (often below 100hz), loud ...

Blue whales are the largest animals to have ever lived on Earth, with some mature adults reaching 100 feet and tipping the ...

They are found on every continent and in every ocean, and range in size from tiny bumblebee bats to enormous blue whales. One reason for their success is the way they move. Mammals as a group use ...