New Canadian-led research into northern resident killer whales suggests even when food is plentiful, orca moms struggle to ...

Blue whale calves enter the world already the size of a bus, yet they still face danger. A hungry killer whale sees a slow, inexperienced target guarded by a single adult. However, orcas cannot reach ...

SEATTLE — The death of an endangered Puget Sound orca found on Vancouver Island might have been related to pregnancy issues, a research group said Friday. The 18-year-old female that washed ashore ...

In 2022, a Russian whale researcher made a remarkable discovery on Bering Island off Russia's Pacific coast: a severed killer ...