News Neuroscience

Both fish and humans have REM-like sleep

Sleep may have originated underwater 450 million years ago

fish brain activity

NIGHT LIGHT  For the first time, scientists have monitored fish brain activity during sleep by using a zebrafish engineered to make a fluorescent molecule that lights up when nerves (green) or muscles become active.

L.C. Leung

By Tina Hesman Saey

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