0
The main purpose of eyelids is to moisten the surface of the eye, which in terrestrial vertebrates (like you and I) is nessesary to provide the eye with lubrication to move. Underwater, the eye is lubricated by the water, and kept moist without effort, thus the eyelids are not present because they don't need to be there.
Interestingly, although it may seem that eyelids are the norm, the majority of species with eyes don't have eyelids. Insects for example.
What else can I help you with?
Do goldfish close there eyes when they are sleeping?
fish dont have eyelids
Do goldfish yawn?
goldfish do not have eyelids therefore they cannot blink.No.
Do goldfish close their eyes?
They can not. They do not have 'eyelids'.
Are goldfish nocturnal?
me, being as thick as i am, dont know what nocturnal means. But goldfih are awake in the day, and sleep at night. Make sure u turn tank lights/room lights off because they dont have eyelids and cant sleep aswel in the lightThat answer your question? :DNo, goldfish are diurnal.
Do taipans have eyelids?
no they dont have eyelids
Does a goldfish dream?
No, they never go to sleep because they have no eyelids. They just sit in the water and rest instead of sleeping. They do not have eyelids because eyelids keep your eyes moisturized, Under the water they have all the moisture they need.
Do whales and sharks have eyelids?
Whales and sharks dont have eyelids because instead they metmorphisize
What special interesting feature does a snake have?
They dont have eyelids
What is similar about the eyes of a goldfish and the eyes of a snake?
They don't have eyelids- I think they have a portective lens that protects their eyes- something like that.
What is similar about the eyes of a goldfish and the eyes of the snake?
They don't have eyelids- I think they have a portective lens that protects their eyes- something like that.
Is goldfish hibernate?
Though this is not an EXACT estimate, Goldfish, if kept in a outdoor pond, will hibernate from November/December to February.
Characteristics about fish?
they have scales and fins and dont have eyelids the eyes are also round
