While studying a large colony of macaque monkeys, scientists interacting with baby monkeys under a week old found that the babies would imitate some, but not all, of the scientists' actions. ███ ██████ ███████ ███████ █████ ████ ███ █████ ███ █████ ███████ ████ ███ ██████████ ████ ███ ██████ ███████████ ████ ███ ██████████ ██████ ███ ██████ █████ ██████ ██ ████ ████ █████████ ██ █████ ████ █████ ██ ████████ ████ ███ ████████ ███ ████████ ███ ███ ██████ ███ ████ ██ █████ ████████ ████ ███████████ ████ ███████
Scientists studying a large colony of macaques found that the babies imitated some of the scientists' actions. They mimicked the scientists when they stuck their tongues out and licked their lips, but they did nothing when they opened or closed their mouths or made hand signs. However, only sticking out the tongue and lip-smacking are used by adult macaques when interacting with their babies.
Baby macaques mimic the actions of adult macaques
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Baby macaques under █ ████ ███ ███ ███████ ██████ ██ ████████ ████ ████
Baby macaques under █ ████ ███ ██████ ███████ ████ ████████ ███████ ████ ██ ███ ███ ███████ ███ █████████ ████████
Adult macaques use ███ ████████ ███ ████████ ███ ███ ██████ ██ █████████ ██████ █████████
Baby macaques under █ ████ ███ ███████ ███ ██████████ ███████████ ████ ████ ███ █████ █████████
Baby macaques under █ ████ ███ ████ ███████ █████ ████████ ████ ████ ██ █████ █████████