Social evolution sexual intrigue and serendipity

Ground hornbills Bucorvus leadbeateribreed cooperatively, and their chicks rely on the group for food for longer than any other social species except our own. Photo Morne DuPlessis. Like many aspects of science, my interest in social evolution came about at least in part by accident. My early training was in population and community ecology, on plants and rodents living rather asocial lives. Although I had read much of Peter Klopfer's 1973 book Behavioral Aspects of Ecology, my own evolutionary...