This Antarctic penguin sleeps 11 hours a day—a few seconds at a time, Science

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

Penguins employ thousands of microsleeps to achieve 11 hours

Sleeping for Seconds, Thousands of Times a Day

Penguins nesting in a dangerous environment obtain large

World's longest penguin dive recorded by scientists in Antarctica

Penguin parents sleep just a few seconds at a time to guard babies

These penguins fall asleep 10,000+ times daily - for just seconds

Penguins Nap 10,000 Times a Day » Explorersweb

Nesting Penguins Take More Than 10,000 Mini Naps Every Day

10,000 microsleeps a day let penguins stay ever watchful

The penguin that sleeps 11 hours a day, for just 4 seconds a time

Penguin parents sleep for just a few seconds at a time to guard

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

The Bizarre Sleeping Habits of Penguins