I call this one, 2 and a Half Pets:
And this one, M is under the impression that I'm about to feed him (note: everything I do seems to give him this same impression), so he is o-v-e-r posing for a picture. G, however, is smiling for the camera and P? Well, P is my perfect child, who the most well behaved animal I have. He just doesn't really care what's happening!