Sleep may have evolved to help reduce DNA damage in nerve cells long before they became centralized in the brain, a study ...

Deep within the sea lies another world entirely. It’s a world of complete darkness, where light is absorbed thousands of feet ...

The benefits of sleep may be more universal than we thought. We know it helps clear waste from the brain in humans, and now ...

Like a scene out of a Jules Verne novel, scientists from Schmidt Ocean Institute recently encountered a giant phantom jelly ...

Sea anemones and jellyfish don’t have brains, but the way their neurons behave during sleep shows some surprising ...

Humans began sleeping as a way to partly help reduce DNA damage in nerve cells, scientists at Bar-Ilan University in Israel ...

Despite not having a brain, jellyfish sleep for around eight hours a day, just like humans according to a new study.

With increased DNA damage from UV radiation or other reasons, the researchers also observed the jellyfish and sea anemones ...

This jellyfish is very small in size. Its height and width are about 4.5 millimeters, which is less than the size of a little fingernail.

A new study from Bar-Ilan University shows that one of sleep's core functions originated hundreds of millions of years ago in ...

Studying ancient sea creatures’ snoozing habits could shed light on the origins of sleep.