Orcas can live nearly a century in the wild. They rule the oceans but are curious animals, especially when it comes to humans ...

Dolphins and orcas belong to the group of cetaceans, which includes whales and porpoises. All cetaceans are descended from ...

When orcas hunt, they congregate in packs like wolves and act like a team to take down prey. Besides dolphins, they are known to eat fish, squid, sharks, sea turtles, penguins, seals, walruses ...

Like dolphins, orcas are highly intelligent and social animals as well as the sea's apex predators. Don't be fooled by the name. Killer whales, aka orcas, are actually dolphins .

Both dolphins and orcas have one thing in common when it comes to humans—they are kept in captivity at aquariums around the world. And they don't seem to like it.

Orcas were spotted using kelp as a grooming tool on each other, the first known use of tools among cetaceans for something other than hunting prey.

BAJA CALIFORNIA SUR (CBSLA) — Tourists on a diving boat thought they were just enjoying the sight of dolphins leaping out of the water, when an orca breached and slammed into one of them ...

Eastern Tropical Pacific orcas, or killer whales, are encountered mostly off Mexico but occasionally visit Southern California waters, where common dolphins are abundant. Orcas are the largest ...

Then come the orcas in a segment that shows one orca blasting a dolphin airborne as the orca also soars perhaps 20 feet high. (Click here if video player does not appear below.) ...

Dolphins off the coast of Australia are swimming around with sponges on their noses. But unlike the orcas who wear salmon on ...