I do not take drugs. I am drugs. You can take me. I am a hallucinogen.” These are the famous words left by surrealist painter ...

Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...

From napping half their brain while flying to taking four-second naps to survive parenthood, these animals have evolved clever ways to catch some shuteye. Every animal with a brain needs sleep - and ...

Frigatebirds snooze in flight while penguins take four-second catnaps Emperor penguin chicks stand together in Antarctica. Penguin parents take thousands of catnaps a day while looking after their ...

Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and even jellyfish sleep. Sleep is universal “even though it’s actually very ...

Nodding off Is Dangerous. Some Animals Have Evolved Extreme Ways to Sleep in Precarious Environments Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds ...