Turns out that lying down to catch some Zs is not universal. Some animals skip the whole “horizontal nap” deal and snooze upright like it's no big deal. It's a quirky, gravity-defying habit that makes ...

Ever wonder how animals sleep in the wild? It's not always as you may think. From sloths who hang upside down from trees to ...

Cats are famous for their ability to nap anywhere and everywhere, but horses have a cool naptime trick too. They can get some shut-eye while standing up! (Why couldn’t humans have inherited this ...

No human being on the planet can function, or even live, without sleep — and neither can horses. In fact, the quality and quantity of an equine’s sleep directly affects their health and wellbeing.

Most animals close their eyes when they sleep. But did you know some amazing creatures can actually sleep with their eyes open? It might seem strange, but these animals have developed abilities to ...