@Nindigo This cat and dog are very friendly with one another but once in a while the dog just can't resist chasing the cat. Thanks for clearing up the alien question. I had a feeling that might be the case. Yeah, the teams really knocked it out of the park with the Cats and Dogs EP. They are very well done as far as being complex characters with awesome animations and wonderful facial expressions. I often find myself watching the pets more than my Sims. These two weren't raised together. They belong to a newly married couple who blended their households into one. And in this save I am playing now, these two are the only pets in Sulani. They get a lot of attention from my other Sims, which is sweet. And no need for a doorbell in this house, as soon as another Sims stops by to visit they run across the house and stand at the door. And if my Sim is too busy for guests and doesn't go outside to greet him, the dog and cat go out to greet the guest. Which usually ends up being a big love fest between the guest and the pets. Heck, they have higher friendship bars with most of the townies than my Sims do. :)