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Why do chickens have three eyelids?

Updated: 8/10/2023
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9y ago

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Frogs really do have 3 eyelids first off. Two of the three are translucent and the third is either translucent or opaque. One translucent one is to protect their eyes when they're underwater and the other is extra protection. The opaque/translucent one is the outer eyelid covering the translucent ones up.

Frogs have 3 eyelids. The first 2 are translucent and the third 1 is called the nictitating membrane which protects the eye underwater and moistens the eye on land. xD

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13y ago
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7y ago

Cats have three eye lids to protect their eyes from getting damaged. Their eyes can be damaged fom trees, dust, dirt, claws, ect. Cats have three eye lids to protect them in fights, when they are walking in the garden, bush, so they can watch their prey and hunt with getting sore eyes from dirt or sand, and also from fights or when they catch their prey it may struggle.


Because they're descended from desert-dwelling sand cats. The protective membrane known as the "third eyelid" can be used to protect the eye during a sandstorm while still maintaining some vision. Since cats aren't often in sandstorms these days, they don't really need it, and if it's surgically removed (like my cat's had to be when it got scratched and infected) the cat won't miss it.
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14y ago

Yes, they do. It is also known as a nictitating membrane. See the related link below.

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Wiki User

9y ago

Dogs have a third eyelid which is called the nictitating membrane or the haw. It serves as a windshield-washer for the cornea, by clearing debris and mucus.

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Wiki User

14y ago

Cats have a third eyelid, the nictitating membrane. This is usually closed if the cat is sick, or is sleeping.

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Wiki User

9y ago

because chickens live in a dusty environment so the eye lids protect there eyes

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Wiki User

10y ago

wow, that is weird

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Anonymous

Lvl 1
3y ago

Three eyelids???

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Q: Why do chickens have three eyelids?
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