I didn't mean for math and art to be an exhaustive list. Remember, my actual criterion was: > if they exhibit ... evidence that they have goals and desires ..

I didn't mean for math and art to be an exhaustive list. Remember, my actual criterion was: > if they exhibit ... evidence that they have goals and desires ... beyond merely that necessary to survive and reproduce Orcas qualify because they play with their food. It's quite gruesome to watch. (And, BTW, this particular behavior is evidence that either orcas do not have a theory of mind or they lack empathy for animals that they eat. The former would be the charitable interpretation.)