Three
Whales and sharks dont have eyelids because instead they metmorphisize
Sharks
Dogs actually have 3 eyelids.
three
they have three eyelids i read in a real book about ducks
camel
Three
No they don't , I once watched this animal program and this professor guy said that fish don`'t need any eye lids because they are in water and their eyes all ready get moist. However, sharks are considered a fish and they have eyelids. I saw a show an Discovery Channel that said they have invisible eyelids like camels and snakes so that their eyes are always protected
dolphins sea cucumbers and hammer head sharks
The muscle that moves the eyelids is called the orbicularis oculi muscle. It is responsible for closing the eyelids.
Most likely for protection for their eyes, some tend to be delicate.