. . . "Now lignin, one of the chemical underpinnings vital to the self-su...The Evolution of Human Aggression: Feb. 25-27 conference SALT LAKE CITY As scientists celebrate 2009 as the bicentennial of Charles Darwin's birth, experts in anthropology, biology, psychology and other fields will gather at the University of Utah Feb. 25-27 to debate how evolution has shaped human aggression and violence, from w" . . .