The endangered southern resident killer whales that visit Puget Sound were listed for protection under the federal Endangered ...

You can watch PBS on television via most cable TV packages — check your local listings for details. You can also live stream "Expedition Killer Whale" for free on the PBS website and app, which will ...

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.

Killer whales are the only natural predator of baleen whales—those that have "baleen" in their mouths to sieve their plankton ...

Orcas, like humans, get baby bumps in the early months of pregnancy and grow larger as the pregnancy advances. Researchers ...

Trading ivory from a hippopotamus, narwhal, killer whale and sperm whale has been banned in the UK as part of conservation ...

Six environmental groups are suing two federal ministers over a delay in issuing an emergency-order recommendation to protect B.C.’s endangered killer whale population. The legal action, filed Monday ...

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 the ...

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 ...