Sleep is a fascinating mystery in the animal kingdom, and chinstrap penguins have their own unique way of getting rest.
Unlike most animals, they take thousands of short naps, lasting only a few seconds each, throughout the day.
These micro-sleeps allow them to stay alert and react to external threats while still getting enough shut-eye.
Researchers believe this sleep pattern is a clever adaptation to the dangers of nesting and living in noisy, crowded colonies.