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RE: los perros , ¿el mejor amigo del hombre?
Dogs have three eyelids. The third lid, called a nictitating membrane or "haw," keeps the eye lubricated and protected.
Dogs have three eyelids. The third lid, called a nictitating membrane or "haw," keeps the eye lubricated and protected.
gracias por la informacion amigo de verdad que no tenia ni idea , buscare mas al respecto ;)