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

Some animals can sleep with just half their brain at a time. Understanding this phenomenon can help us learn more about human ...

Where Do Sleeping Birds Spend the Night? Wild birds are good at finding shelter, according to birding experts Kenn and Kimberly Kaufman. Those that raise their young inside holes in trees, such as ...

A few weeks ago when I was out cycling with some friends, we saw a few birds who looked like they were sleeping. Someone asked me what they were doing, and I said they were resting or sleeping but I'd ...

Some birds sleep in the air. Swifts, for example, hunt down bugs high in the sky 24 hours a day from the time they leave their nest until they return six months later. Some landbirds make transoceanic ...

During their fall migration season, certain sparrows sleep only about a third as much as they do at other times of the year, but they manage to keep up their performance on tests of learning, a new ...

Scientists tell us that the family dog shuffling its legs while asleep on the floor really is dreaming. And when a bird silently nods off on its perch, it may also dream as its singing muscles twitch.

Maddy has a degree in biochemistry from the University of York and specializes in reporting on health, medicine, and genetics. Maddy has a degree in biochemistry from the University of York and ...