Dolphin Mafia

Interesting long-term study discussed in Science Now about the social behaviors of dolphins in Shark Bay, Australia. David Brin wasn’t far off in Startide Rising:

Although bonobos, orangutans, and Western gorillas have less hostile relationships with neighboring groups than do chimpanzees, none of these species has the tolerance of the dolphins, or their ability to form alliances outside of their immediate community. Among mammals, only elephants come close; though they live in matrilineal groups, elephants maintain relationships outside of these, forming large, stratified societies. But even these large societies are still primarily with close kin and are not changeable as are the dolphins’ alliances.

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Science Now

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