Dear Dr. Fox: I adopted two cats from a shelter in July. The vet there gave them a clean bill of health. Later, I took them to my own vet and was told the same. Over time, I noticed that Jay's "third ...

Cats, our feline companions have an extra pair of eyelids which remains hidden but show up occasionally. Ever wondered what it is? Well, It is a white pinkish membrane located at the corner of the ...

C ats do indeed possess a third eyelid, which can sometimes be glimpsed when a pet wakes or yawns. The nictitating membrane (or palpebra tertia, as it is formally known), lies behind the other two and ...