A New Breed of Animal?

I was looking for some stuff online that I could do with the four year old. I found some alphabet and number pages, but I came across a matching game. It said it was an animal matching game (like Memory) but when I opened it, I quickly became very confused. Can you help me out here? There is something there that doesn't QUITE belong. Is it somehow related in a way that I just can't think of? I don't understand. If anyone could shed a little light on the subject, that'd be great. (You can click on the picture to make it bigger.)