Turns out that lying down to catch some Zs is not universal. Some animals skip the whole “horizontal nap” deal and snooze ...

Surprisingly, many animals can sleep standing, unlike humans, who prefer comfortable beds. Horses use a "stay apparatus" in their legs, allowing them to sleep standing up without collapsing.

Donkeys have the same low-maintenance sleep habits as horses and use the same joint-locking system to rest standing up, especially outdoors or in uncertain territory. As prey animals, they stay ...

ASHLEY Fruno is an animal lover of extremes. The all-powerful chief campaigner of People for the Ethical Treatment of Animals (PETA) Asia-Pacific devises animal-saving campaigns so controversial ...