Chinstrap penguins survive on more than 10,000 naps a day, study finds
The art of falling asleep appears to have been mastered by chinstrap penguins, who take more than 10,000 naps a day, with each nap lasting …
The art of falling asleep appears to have been mastered by chinstrap penguins, who take more than 10,000 naps a day, with each nap lasting …