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Dolphin ‘gangs’ protect their females by vocalizing in sync
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By Elizabeth PennisiMales resort to all sorts of desperate measures when fertile females are scarce, including banding together to guard a potential mate.
Now, researchers have discovered that such bands of bottlenose dolphins may coordinate their actions with unique “popping” calls—the first evidence that animals other than humans can synchronize themselves using vocal signals.Humans often use vocal signals to coordinate actions, like marching and dancing, that reinforce unity and intimidate outside groups.
The synchronized displays of other animals—like fireflies that light up at the same time—are thought to be competitive, showing off which male is the sexiest, rather than cooperative.In Shark Bay, off the coast Western Australia 800
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