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

Birds are aflutter with activity all day long so they certainly need to rest at night – but where do they go? Other than owls ...

Rescue birds always find a way of outdoing themselves when it comes to the cuteness factor. They're already impressive, showing off their extensive vocalizations and defying all logic by figuring out ...

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.