My dogs and cats have chips. I agree with Airedalekisses, Tattooes would be to painful. I did see a white pit in a tattoo magazine once that had pierced ears and a flower tattoo on her belly. That same magazine had a little girl (probably 3 years old)with a small tattoo on her foot. I believe it was like a heart or a flower no bigger then a dime. Both repulsed me because they didn't have a choice.

My cat, Raven has a tattoo on her belly indicating that she is spayed. She came that way and the lady said it was standard. I had never heard of it until then. Does anyone else have spay tattooes on their pets?