Sort:  
  • Trending
    • [-]
     7 years ago  

    Dogs have three eyelids. The third lid, called a nictitating membrane or "haw," keeps the eye lubricated and protected.

    $0.04
    • Past Payouts $0.04
    • - Author $0.03
    • - Curators $0.01
    1 vote
    Reply
    [-]
     7 years ago  

    Thanks for that dog fact :)

    $0.00
      Reply