Do Fish Sleep With Their Eyes Open? (This Feels Illegal) #CreepyFish #AnimalFacts #DoFishSleep

Since fish don’t have eyelids, they literally sleep with their eyes open. Some change colors, some hide, and others wrap themselves in mucus bubbles (which is both gross and genius). So yeah—your fish is staring at you… but it’s probably just dreaming. #WeirdAnimalFacts #FishyBehavior #FunFacts #MarineLife