Eerie yet fascinating footage shows the 10-metre-long sea creature gently pulsing and swirling its way through the dark ...

Jellyfish and sea anemones display human-like sleep, supporting theories about sleep’s role in preserving neurons, even ...

It turns out sleeping isn’t just about resting your eyes, as a new study found that even ancient creatures without eyes — or ...

Learn how jellyfish and sea anemones are changing what we know about the evolutionary purpose of sleep.

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

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

Sea monsters are myths. There no real sea monsters in reality, but reality sure does come close. Take the giant phantom ...

Scientists already knew that the pair of shallow coastal ocean dwellers keep very different schedules of downtime: The ...

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 ...

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