Orcas, or killer whales, are deadly and beautiful apex predators.

blue whales and narwhals. Despite their name, killer whales — or orcas — are not whales. Instead, they are part of the closely related dolphin family. Many whale species were hunted for their ...

(CNN)-- Killer whales can weigh up to 22,000 pounds, and may be as long as 32 feet, according to the National Oceanic and Atmospheric Administration. They often travel in groups of up to 50 ...

Orcas: Dolphins in Disguise Despite their name, orcas—often called "killer whales"—are the largest members of the dolphin family. These apex predators prey on a wide range of marine life ...

Animals trapped by Arctic ice often die, and they are prey for polar bears, killer whales, and for Arctic people. They are hunted by indigenous people of the north, and by commercial fisheries ...

A massive gang of over 60 orcas was seen brutalizing an endangered pygmy blue whale off the coast of Western Australia by a whalewatching tour.

The sighting of a baby killer whale in British Columbia has given researchers a sign of hope for the endangered species, ...

(CNN)-- SeaWorld will resume killer whale shows while the company and two ... in which inspectors will go to SeaWorld to gather facts. If they think any welfare-act violations contributed to ...

A rare group of endangered southern resident killer whales was spotted off Oregon’s central coast Monday, March 24, about three miles offshore near Cape Foulweather, just north of Depoe Bay.

In Antarctica, one orca population prefers penguins, while another likes minke whales. Other behaviors vary from group to group. Some resident killer whales in British Columbia frequent “rubbing ...