We're used to thinking of giraffes as one species. Turns out, there are actually four distinct species of the world's tallest mammal. We're used to thinking of giraffes as one species. Turns out there ...

Most animals don’t keep the same schedule we do. While we try to squeeze in eight hours and call it a good night, many animals snooze through more than half the day—and some barely stay awake at all.

For over 200 years, there has been just one species of giraffe, Giraffa camelopardalis. This unmistakable African animal is easily recognized across the world. With their long necks and distinctive ...

Giraffes are famous for their towering height, but this unique anatomy also shapes one of the strangest sleep patterns in the animal kingdom. Living on open grasslands with little shelter, giraffes ...

Giraffes snooze in the most unexpected positions, surprising and delighting onlookers.

This is read by an automated voice. Please report any issues or inconsistencies here. Animals such as penguins and frigatebirds have evolved extreme sleep strategies — naps that last a few seconds, ...

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 ...