There's a new member of the Southern Resident killer whale family, a species that's fighting extinction with less than 100 known creatures in existence. Tahlequah, an orca that grabbed the nation ...

Whale sharks are gentle, filter-feeding giants, but orcas in Mexican waters were documented attacking the animals and devouring their livers.

Divers captured the shocking footage of an orca tearing a shark open and "slurping" out its liver, a hunting technique that is rarely observed by humans.

Sea World killer whale Tillikum broke trainer Dawn Brancheau's jaw and vertebra, and dislocated an arm and a leg while thrashing her around, an autopsy has concluded.

A female trainer was killed by a 12,000 pound killer whale at Sea World's Shamu Stadium in Orlando, Fla., according to police and local media. The whale responsible for the attack is named Tilikum ...

What I find remarkable about this behavior is just how widespread it is in the population,” Michael Weiss, of the ...

Kohana's death marks the third killer whale to die at the Loro Parque marine park in Tenerife, Spain in the past 18 months.

T he killer whales that roam the waters of the Monterey Submarine Canyon, off the coast of California, are brutal animals. When hunting grey whales, they target mother and calf pairs, chasing them ...

Killer whales have often been considered one species, but a new report is outlining the distinct differences between Resident and Bigg's species.

In the vast Pacific Ocean, a dramatic and unexpected rescue unfolds as a pod of hungry killer whales attacks a defenseless baby blue whale. With no sign of its mother, the baby whale is helpless ...

Dramatic footage captures a group of killer whales methodically ram, isolate and kill a gray whale calf passing through Monterey Bay with its mother on Saturday.