Researchers have documented orcas dropping prey and other marine life in front of humans, as if offering us food. The orcas' ...

After the hunt on Monday, Biagini said the orcas started to approach boats and poke their heads out of the water to see what is going on — a behavior known as spy hopping.

Orcas, also known as killer whales, are among the most intelligent and social of marine mammals. They live in tight-knit pods ...

The sea lion nearly caused the boat to flip over. Orcas, or killer whales, are known for feasting on sea lions and seals. The apex predators have fearsome hunting techniques.

A group of orcas off the coast of California has honed a brutal set of hunting skills. Trapping prey near an underwater canyon, they flip, drown, ram, and slap their targets to death.

A group of orcas off the coast of California has honed a brutal set of hunting skills. Trapping prey near an underwater canyon, they flip, drown, ram, and slap their targets to death. Killer whales ...

A pod of orcas damaged a boat and left its two-person crew stranded. It was the latest in a string of attacks that research suggests could be used for hunting practice.

Too many boats with inexperienced operators around a pod of orcas runs the risk of impeding their hunting behavior or potentially hitting them, said Schulman-Janiger.

A group of orcas off the coast of California has honed a brutal set of hunting skills. Trapping prey near an underwater canyon, they flip, drown, ram, and slap their targets to death. Killer whales ...