Killer whales off Canada's Atlantic coast continue to be contaminated with dangerously high levels of toxic chemicals that ...

Russian rescuers returned a young female killer whale to the Sea of Okhotsk on Thursday after the orca beached in the far ...

A new study says persistent organic pollutants in waters off Canada’s East Coast are “dangerously high” for killer whales and ...

HALIFAX - A new study says persistent organic pollutants in waters off Canada’s East Coast are “dangerously high” for killer whales and put them at an elevated risk for serious immune-system ...

For the first time in half a century, a group of killer whales, or orcas, returned to a cove in Washington's Puget Sound. Penn Cove is known for a roundup by hunters that took place in the 1970s.

Two southern resident killer whales are presumed dead after multiple sightings of two endangered pods failed to turn up a ...

This is the heroic moment a stranded killer whale is rescued with the help of an excavator after it beached itself and became stuck in sand and snow in Russia. Footage shows the excavator digging ...

For the first time in more than 50 years, a pod of killer whales has been spotted swimming in a notorious part of Washington's Puget Sound. MICHEL MARTIN, HOST: It's called Penn Cove, and it's ...

Footage shows a killer whale that appeared to have been injured during a performance at an aquarium bleeding by the side of the pool. The video, filmed at Shanghai Haichang Ocean Park, shows the orca ...