Question: You have the best facts soooooooo how do fish sleep, I've wanted to know 4 ages! p.s. I voted 4 you!

Alex Seeney answered on 14 Jun 2018:

Ooh, cool question! Fish don’t really “sleep” in the same way that mammals do. They do rest though, and when they do this, their activity and metabolism slow down, though they’re still looking out for predators! Scientists think that these rest periods might have similar effects on the fish as sleeping does for us.