I answered this for you the other day. Mankind, from an alien point of view.

Thread: Mankind --- From an Alien Point of View

Your creativity. Other animals on the planet have emotion, ability to comprehend, their own communications. Most here are probably unfamiliar with the intelligence of sea life, Dolphins, Orca, various species of whales. They are very intelligent and even somewhat creative, but man outstrips all in creativity. I like to say it proves GOD had a sense of humor!