Dolphins

Killer whales hunt in packs, play with their food and sometimes commit murder.

Whale watchers in Japan recently saw a pair of white orcas swimming side by side in a pod off the coast of Hokkaido.

Eight dead whales found in Norway had high levels of chemicals, including banned PCBs, in their bodies.

A marine mammal medic praised locals who helped save a stranded juvenile killer whale from a beach in Scotland. Here's how they did it.

These marine mammals look like killer whales but smaller, with smaller patches above their eyes and pointier dorsal fins. What are these posers

This is (Dolphin) Spinal Tap.

A beleaguered orca population finally has something to celebrate.

Despite rescuers' best efforts, Scarlet, a young ailing orca, is now presumed dead.

Capturing Scarlet could be the only way to save her — if she's still alive.

Though the site was spectacular for onlookers nearshore, to the dolphins, it was probably just another Monday.