How to Sleep With Fish Without Eyelids

Fish don't really sleep, at least not in the way that we do. Parrotfish actually make themselves a little mausiness of sorts. They blow a big snot bubble to rest in at night. When it comes to anglerfish, the females all have a glowing lure on their heads. In the deep sea you get some strange fish. Because it's so dark down here, it's incredibly hard to find food.