Little did you know, but the greatest evolutionary advantage? Being useful to humans. Like, here is a graph of cow population, and here is a graph of elephant population. Elephants, if you just inserted yourself into human life the way cows did, you could have used your power and intelligence to form secret elephant societies, conspiring against the humans. And then you could have risen up and destroyed us and made an awesome elephant world with elephant cars and elephant planes. It would have been so great, but no. You gotta be pregnant for twenty-two months and then have just one kid.