Animals vs Humans

Check out this picture.

While it may seem pretty interesting, some of it isn't exactly true. That apes can learn sign-language signals doesn't mean they understand language. That some animals react to themselves in the mirror doesn't mean they are self-aware. That monkeys seem to "play" doesn't mean they have a sense of humor. A lot of unscientific assumptions here! I suggest reading the book Human: The Science Behind What Makes Us Unique by Michael S. Gazzaniga.