Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers ...

Some animals rely on brute strength to hunt, while others use intelligence, deception, and teamwork to outwit their prey.

Pack-ice killer whales are highly social creatures, communicating through various vocalizations like pulsed calls and whistles. For the first time, researchers have recorded these vocalizations and ...

After being freed, “it began to swim and drive, showing all the great behavior we hope to see in a humpback,” an official ...