Sleep is a universal biological state that allows all animals, from mammals to amphibians, fish and even insects, to restore ...

Sleep looks peaceful on the outside, but inside the brain, it is anything but ...

This coral keeps time without a brain, showing how distributed nerve nets can synchronize movement across an entire animal.

Ronan the sea lion can dance to a lot of different songs, but there is something about “Boogie Wonderland,” by Earth, Wind and Fire that really gets her going. It didn’t take more than a few days for ...