obehave writes " You've seen life in a baboon troop on TV: the epitome of nasty, brutish, and short. So what happens when a baboon troop loses its nastiest, most brutish members? PLoS Biology, an open-access science journal, reports the curious story of a baboon troop which lost the nastiest half of its male population through natural causes. The troop became different and the difference persisted through a generational change. Here's the synopsis, the full article, and a commentary."