I'm cannot accept animal testing in any form, especially in the higher mammals like dogs and cats. Computer simulations can pretty much determine how long a cats or dogs teeth will go until they are really cruddy. Actually computer simulations can determine anything based on past research. I'm not with PETA, I'm only an animal lover. If you had the chance to see this testing on animals it would break your heart. It should stop, now! My cats hate Iams anyway.