The sight of an orca clinging to her dead calf for a heartwrenching reason turned out to be a way of coping with loss, just like humans.

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers say they can now spot those underwater baby bumps from the air and keep ...

A mother killer whale's 'grief procession' for her dead newborn calf has come to an end. Observed swimming with other members ...

The endangered southern resident killer whales that visit Puget Sound were listed for protection under the federal Endangered Species Act 20 years ago this year. Yet today, there are even fewer ...

For a second time, the world watched as Tahlequah, an endangered southern resident killer whale, struggled to keep her dead newborn calf afloat in the Salish Sea. But with Ottawa failing to take ...

The legal action comes after Fisheries Minister Diane Lebouthillier and Environment Minister Steven Guilbeault determined the waning population of southern resident killer whales faces imminent threat ...

For more than a thousand miles, a Southern Resident killer whale known as Tahlequah carried the body of her dead calf on a ...

New research finds some baleen whale species call at such deep frequencies that they're completely undetectable by killer whales, which cannot hear sounds below 100 hertz. These also tend to be ...

Experts say there’s one distinct thing people should know about these pods. They’re killer Biggs, not the endangered Southern ...

Get Instant Summarized Text (Gist) Some baleen whale species sing at frequencies below 100 hertz, making their calls undetectable to killer whales, which cannot hear such low frequencies. These ...