WILD NATURE Killer whale mothers protect their sons more than their daughters, new study finds Once a mother whale stops breeding, she's more likely to help her male offspring than the females ...

Killer whales are known for their intelligence and power, even an inclination to sink yachts. Now, research is showing how they take down prey that few other animals can. Orcas in Mexico's Gulf of ...

Whale watchers overwhelmed by sighting of well-known white orca 00:54. A group of seafaring tourists saw something unusual while whale-watching off the coast of Southern California this week.

In 1992, a colleague had returned from a fishing trip in Baja with a story about seeing two killer whales attacking a whale shark. But Ms. Schulman-Janiger was never able to confirm the event.

J35, a southern resident killer whale also known as Tahlequah, carried her child's body on her head for 17 days across a distance of 1,000 miles in 2018, according to the Center for Whale Research.

Researchers and tourists in Mossel Bay last June witnessed a killer whale named Starboard hunt an 8-foot great white shark, seizing it by the pectoral fin and "eventually eviscerating it ...