Hmm …

…Reading J. A. Baker's The Peregrine in Fall. (Hat tip, Dave Lull.)

Our species isn’t that old, and yet we forget. In the blink of an eye, we crawled out from the caves, swept across the globe like a cancer, and after two hundred and fifty years of industrial civilization, we appear to be pushing all life toward the brink of extinction. “We are the killers,” Baker writes. “We stink of death. We carry it with us. It sticks to us like frost. We cannot tear it away.” 

Well, you can blame Almighty Evolution for that. See also this.