When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange.One of the orcas, a juvenile female, “approached a camera I had in the water to ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review spanning two decades has revealed a little-known, yet intriguing behavior.

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When researcher Jared Towers set up his cameras underwater to observe a pair of killer whales, he saw something strange. She closed her mouth, paused, apparently watching for Towers’ reaction and hung ...