This is not a... cow?

I visited the Eau Claire Children's museum this weekend with my sister and niece. One of the items was a miniature dentist's office, complete with some kind of animal sitting in the dentist's chair. Is it a cow? A horse? I'm not really sure. Any paleontologist or biologist familiar with vertebrates will tell you that mammals can be identified to specific groups fairly confidently by the number and type of teeth in the mouth. Based on that, however, the animal sitting in the chair is a human (or other Ape)...

My 13-month-old niece found the critter somewhat amusing. The adults in our group found it creepy.