World's smartest dog understands more than 340 words

There are two types of people, dog people and cat people, and each thinks they’re better than the other. One of the cat peoples’ favorite argument is that dogs are stupid. Well, I’m not taking sides, but check out this BBC video, detailing what could be the smartest dog in the world. For some reason, the dog is known only by a code name, Betsy. Betsy knows over 340 words. In the video, you can see her identify dozens of objects by name.