Zebrafish point to an ancient origin of sleep

As one of those people who REALLY love to sleep -and doesn’t get close to enough of it- I am always interested to read on the topic. What I didn’t expect was to read about sleeping fish and how that relates to its origin. It turns out studies on zebrafish show the ancient origin of sleep.

zebrafish point to ancient origin of sleep
Zebrafish – Danio rerio. Photo by Azul. Whether he was sleeping when the picture was taken I cannot say…

Read more on Mappingignorance.org