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Episode 161 - Sleep

The Common Descent Podcast

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The Complications of Sleep in Sharks and Rays

Zebrafish have been noted very well even with having sleep rebound and needing more sleep after being restless. They also note that there's lots of things that keep going even when a fish is inactive that makes it hard to know if they're sleeping or not. You do have the buical pump breathing ones which can pump water with their mouth and take long periods of rest on the sand. Some of them can even close their eyes.

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