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I know cock's lower eye lids moves to meet the upper one when it closes its eye. What other animals does this? BTW, "cock-eyed" can mean upside down, I think.

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Actaully there are quite a few animals which actually moves there lower eyelids:

  • Most of the birds
  • Reptiles(Except Snake)
  • Amphibians
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Nictitating membrane (inner eyelid) of sharks can cover sharks eye as it moves from the upper to the lower eye lid (http://en.wikipedia.org/wiki/Nictitating_membrane).

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