This reminds me of an Asimov short story about a genius who theorizes that the planets are like petri dishes and we are just test subjects being observed by higher life-forms. One of his reasons is that logically, us humans don't have much going for us in the way of evolution and we only are where we are because we've been selected for experimentation.
Survival of the fittest is determined mostly by physical features such as strength, speed, agility etc...
What puts us above other animals is (excluding our brains) we're bipedal and we have thumbs (letting us use advanced tools), just like many primates. Our advantage I suppose is that we have developed advanced communication.