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Science
fromwww.scientificamerican.com
19 hours ago

Scientists Catch Jellyfish and Sea Anemones Behaving in Surprisingly Human Ways

Sleep-like neuronal activity and maintenance functions appear conserved from brainless cnidarians to animals with complex brains.
fromNature
3 days ago

Jellyfish sleep like humans - even though they don't have brains

Neither jellyfish nor sea anemones have brains. But these animals sleep in ways strikingly similar to humans, according to a study published today in Nature Communications. The findings bolster a theory that sleep evolved, at least in part, to protect the DNA in individual nerve cells, helping to repair damage that builds up while animals are awake.
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