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These Parrots Can Make Other Parrots ‘Laugh’—a First

‘Forget the laughing kookaburra—kea are the birds that really tickle each other’s funny bones. The highly intelligent parrot has a specific call, that—like human laughter—puts other parrots that hear it in a good mood. This makes the kea the first known non-mammal to show contagious emotion, joining the ranks of humans, rats, and chimpanzees.’

Source: National Geographic