Orangutans use slang to ‘show off their coolness’, study suggests
Primates come up with new ‘kiss-squeak’ alarm calls that spread quickly through communities, research says
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The team found high-density communities of orangutans used a wide range of novel calls, but with a high turnover, meaning many rapidly fell out of use. By contrast small groups came up with new calls less frequently, but tended to retain novel calls when they occurred.
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