These nesting penguins nod off 10,000 times a day, for seconds at a time

Weird Chinstrap penguins sleep over 10,000 times a day for just 4

Nesting Chinstrap Penguins Take Over 10,000 Small Naps Throughout

Penguins snatch 11 hours of sleep through seconds-long micronaps

Penguins nesting in a dangerous environment obtain large

These nesting penguins nod off 10,000 times a day, for seconds at

These nesting penguins nod off 10,000 times a day, for seconds at

By taking 10,000 four-second naps a day, chinstrap penguins can

Penguins' Survival Secrets – Scientists Uncover Bizarre 4-Second

Extreme sleep behavior documented in cute Antarctic chinstrap

Antarctica's chinstrap penguins get four seconds of shut-eye

These nesting penguins nod off 10,000 times a day, for seconds at