The only animal capable of giving man a fair fight is man. Actually, among ourselves, we fight unfairest of all, and the more we practice, the nastier we get.
~ Robert Buettner
Since the war, we're the only intelligent species left in the universe, therefore we think everything in this universe has to conform to our paradigm of what makes sense. Do you have any idea how arrogant that view is and on how little of this universe we base it?
Planetologist call it the conundrum of unforeseen ecological consequence. I call it the whack-a-mole rule of human meddling. She clasped both hands like a child hammering. WHACK! We change something here. Oops, that makes another problem pop up there where we didn't expect it. WHACK! So, we whack that mole. Oops! We're so smart that we're a menace.