Sure, chimps and dolphins are smart. But did you know about the terrifyingly intelligent Komodo dragon, the paranoid squirrel, or the insect supervillain Portia labiata? According to new studies you can break down animal intelligence into a few categories: social learning, mirror self-recognition, numerical abilities, language comprehension, cooperation with others, and altruism.
There are a whole mess of highly intelligent animals you might not expect. If you really want a smart pet, don't get a dog or cat. Get a domesticated raven.