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10,000 naps a day: the amazing sleep of the chinstrap penguin

2023-11-30T18:07:38.852Z

Highlights: 10,000 naps a day: the amazing sleep of the chinstrap penguin. Instead of sleeping at night for several hours, they multiply micro-naps throughout the day. 120 kilometres from the Antarctic Peninsula, small King George Island is home to one of the largest populations of chinstrape penguins. Researchers report their discovery in the journal Sciences. They are known to have 11 hours of sleep per day, but this is more than any other species of bird. It is thought that the penguins sleep in increments of several hours.


These birds have a peculiar habit, to say the least. Instead of sleeping at night for several hours, they multiply micro-naps throughout the day.


120 kilometres from the Antarctic Peninsula, small King George Island is home to one of the largest populations of chinstrap penguins. Won Young Lee, a marine biologist at the Korea Institute for Polar Research, knows them well. He has been studying their behaviour for a long time. In December 2019, he took Paul-Antoine Libourel, a research engineer and sleep ecophysiologist at the Lyon Neuroscience Research Center, on a rather special expedition. Their goal: to study their sleep, an aspect of the animals' lives that is often overlooked.

For any human being, as with most mammals, it is normal to sleep in increments of several hours. Chinstrap penguins, on the other hand, have rather peculiar sleeping habits: they multiply micro-naps throughout the day. Are they really sleeping? Together with their team, Won Young Lee and Paul-Antoine Libourel report their discovery in the journal Sciences.

11 hours of sleep per day

Birds are known to have...

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Source: lefigaro

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