'Cats have a "nictitating membrane", a third one of these, which is used to clear dust from the cornea'
an eyelid
CAT SKILLS: Cats have a nictitating membrane, a third one of these, which is used to clear dust from the cornea
Cats have a "nictitating membrane", a third one of these, which is used to clear dust from the cornea
Cats have a "nictitating membrane", a third one of these, which is used to clear dust from the cornea
CAT SKILLS
an eyelid
CAT SKILLS