
Orangutans have power naps to make up for lost sleep
Scientists studied 53 of the wild primates for more than a year in the rainforests of the Indonesian island of Sumatra and found that they mirror humans by catching up on shuteye during the day if they get less rest at night.
Orangutans typically get nearly 13 hours of sleep at night in big leafy nests built high in trees. But when their slumbers are cut short, they make up with a 76-minute power nap — or longer if the previous night was shorter.
Alison Ashbury, the study's first author and a scientist at the Max Planck Institute of Animal Behaviour and the University of Konstanz in Germany, said: "Moving through the canopy, finding food, solving problems, navigating social relationships; these are all tiring and cognitively demanding tasks.
"When an orangutan doesn't get enough sleep, it does what any sleep-deprived human might do: it climbs into bed, lies down, and takes a nap."

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