Does any animal have ability to sleep with their eyes open?
Yes, some animals do sleep with their eyes opened. Snakes, Fish, Insects, Guinea Pigs, Hippos, etc., Google it, it shows a lot of animals.
yes. the fishes don't have eyelids so they do. and some other land animals.
Dolphins sleep with one eye open because they can't breathe subconsciously with that eye open there's 50% brain activity so they breathe
Yes ...dolphin keeps one eye open while sleeping..
Yes, definitely, in fact, some animals don't have eyelids at all! One animal is a snake. You never know when it's sleeping or awake.
Yes, there are many, some humans even sleep with their eyes open.......its kinds creepy too
Sharks have no eyelids.
My rabbit sleeps with his eyes open sometimes. And my brother.
yes many animals in fact sleep with their eyes open like snakes,fishes,hippos.......
Fish, I would say