The whales appear to prefer the company of 'like-minded' individuals, based on common vocal clicking behavior—an example of culture, researchers say. Christopher Intagliata reports.
ByWe humans are social creatures—we stick together. Family traditionally came first. Then more distant relatives. Then larger groups of unrelated individuals, connected by culture. But it turns out the same could be said for . "So usually you find the female, and their mom and the grandmas and their aunts, ."
And similarly clicking whales don't just hang out together, he says. They also emulate each other's songs, or codas. Meaning clans of whales evolve their own dialects—their own form of culture. And these dialects are key. Cantor and colleagues built a computer simulation of generation after generation of virtual whales. And they found that no other factor—like genetics or mother-daughter teaching—could explain the emergence of the clans and dialects in real sperm whale society. The study appears in the journal [Mauricio Cantor et al, ]
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