Jellyfish and sea anemones are curious creatures: these organisms evolved without a brain and, as scientists discovered only ...

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

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

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.

Jellyfish and anemones sleep to repair neuronal DNA damage Jellyfish and sea anemones extend sleep when neuronal DNA is ...

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

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

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

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

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

“Expression tells us what cells do, but regulatory DNA tells us where they come from, how they develop, and which germ layer ...

In jellyfish and sea anemones, neurons accumulate DNA damage while animals are awake and repair that damage during sleep.