Humpback whales around the globe are mysteriously rescuing animals from orcas

Re:Humpback whales around the globe are mysteriously rescuin... by JumpCrisscross on Thursday August 04, 2016 @03:23AM (#12223975)

> The transient orca are the ones who eat mammals and don't have large social groupings. The resident orca have larger (matriarchal) social groups and don't eat other mammals, just fish.

Source? Also, what does "resident orca" mean in this context?

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Re:Humpback whales around the globe are mysteriously rescuin... by wcameron on Thursday August 04, 2016 @03:34AM (#12224018)

https://en.wikipedia.org/wiki/Killer_whale#Types

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Re:Humpback whales around the globe are mysteriously rescuin... by niccaluim on Thursday August 04, 2016 @04:29AM (#12224228)

"Transients and residents live in the same areas, but avoid each other." Not so different from humans, then.

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Re:Humpback whales around the globe are mysteriously rescuin... by Roboprog on Thursday August 04, 2016 @12:50PM (#12226831)

Or elephants? Matriarchal herd vs non-breeding "rogue" males.

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