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

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

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

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 ...

Yet, jellyfish tend to sleep through the night like humans, and even nap around midday. Meanwhile, their close relative, the ...

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

At 830 feet below the waves off the Argentinian coast, deep-sea explorers caught a glimpse of a rare, giant phantom jellyfish ...

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

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

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

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