A northern resident orca calf gets a belly rub from its mother as they swim. Mothers and calves stay together for life in orca families and affection, touch and play are a part of everyday life, researchers are learning using a drone and cameras. (Andrew Trites / University of British Columbia)
A northern resident orca calf gets a belly rub from its mother as they swim. Mothers and calves stay together for life in orca families and affection, touch and play are a part of everyday life, researchers are learning using a drone and cameras. (Andrew Trites / University of British Columbia)
Environment

Researchers attach cameras to Pacific Northwest orcas, revealing a marvelous underwater world

Researchers are closely studying northern and southern resident orcas for clues to their survival. Their newest tool: underwater cameras attached to the whales' skin.  WATCH

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