Chinstrap penguins survive on more than 10,000 naps per day, study finds
Breeding chinstrap penguins seem to have mastered the art of nodding, taking more than 10,000 naps a day, with each nap lasting an average of …
Breeding chinstrap penguins seem to have mastered the art of nodding, taking more than 10,000 naps a day, with each nap lasting an average of …