A massive killer whale swam deep into Yaquina Bay, hunting alone and stunning onlookers. Here's what we know about T049C — ...

Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans. Here's what they think is going on.

The grieving whale was most recently spotted carrying her daughter, who died on New Year's Eve, in Haro Strait on Jan. 10 An orca whale mother has kept her dead calf by her side for at least 11 days.

Unlike the endangered Southern Residents population, whose calls are tightly patterned and used for complex group cohesion, ...

A new orca calf was spotted in Puget Sound last week that is part of the family of the last killer whale that was captured in U.S. waters. The new Bigg's, or mammal-hunting, orca calf was spotted ...

Captive killer whales have been linked to four human deaths ... Orcas are very social creatures and live in family groups called pods, which generally have five to 30 members.

The orca calf belongs to a family of transient killer whales, or “Bigg’s” killer whales, and was first spotted in the Salish Sea on Thursday, March 20, between Port Townsend and the San Juan ...

A family of killer whales was spotted swimming in the waters of downtown Vancouver, stunning passengers aboard a tourist ferry. Video shared on social media by False Creek Ferries of the Sunday ...

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 ...