Member Rara Avis
Chris is right, of course, that all animals and organisms seek to control their environment, but my statement that it was our only survival trait runs deeper.
Physically, we are incredibly slow, weak, cumbersome creatures. We can't fight, we can't run, and we're too dang naked to hide very well. As omnivores, we don't even have enough stomachs to be a good cow. We are very, very poorly adapted to our environment. So we survive, instead, by adapting our environment to us. Should Ess be willing to run naked through Canada in April, I think he will better understand that.
Of course, in New Orleans, such an experiment would likely teach a somewhat different lesson.