This penguin survives on 4-second microsleeps — thousands of times a day

This Penguin's Amazing Sleep Pattern: 4-Second Microsleeps

10,000 naps a day: how chinstrap penguins survive on microsleeps

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

10,000 naps a day: how chinstrap penguins survive on microsleeps

Penguins – Arnold Zwicky's Blog

Penguins found to nap 'thousands' of times a day

This fast-living marsupial chooses sex over sleep — and dies young

Microsleeping penguins nap thousands of times a day

Rachid Mrabet, Ph.D on LinkedIn: This penguin survives on 4-second