"An ancestral trait." Groundbreaking study finds bizarre similarity between brainless jellyfish and humans: 'Fundamental ...

Jellyfish and sea anemones sleep too. A new study reveals that sleep may have evolved to protect nerve cells from DNA damage.

One minute, you’re swimming in the sparkling water off the Queensland coast. The next minute, you’re fighting for your life.

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

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

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

Jellyfish sleep around eight hours a night, take short daytime naps, and compensate for lost rest,all without having a brain.

Giant phantom jelly sightings are extremely rare, but recent footage shows this extraordinary deep-sea jellyfish in all its ...

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

One ocean-dwelling creature found in tropical waters is known to be able to reverse its own life cycle, cheating death. The jellyfish, Turritopsis dohrnii, was first discovered in 1883, but it was ...

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