Sleep is one of life’s most universal behaviors. Despite its ubiquity, it’s also one of the most mysterious. Humans spend ...

They identified two states: a “normal” one and a quiet state. When they were in this quiet state, the jellyfish were much ...

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

A new study from the multidisciplinary brain research center at Bar-Ilan University found that jellyfish and sea anemones ...

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

The jellyfish, like the sea anemone, although lacking a brain, experience deep rest phases that meet all the criteria of ...

Experts found that these sea creatures sleep for at least 8 hours a day, a duration often considered ideal for human sleep.

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

Bar-Ilan University research shows even jellyfish and sea anemones repair DNA during repose, underscoring the fact that a ...

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

Jellyfish and sea anemones exhibit sleep-like states without brains. Scientists say this discovery rewrites evolution’s timeline, showing sleep may predate complex nervous systems entirely.

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