1. The Territorial Imperative;Ardrey,1966
2. Parental behavior and hormones in non-mammalian vertebrates;Buntin,2010
3. The Evolution of Parental Care;Clutton-Brock,1991
4. Aggression and War: Their Biological and Social Bases,1989
5. Built by Animals: The Natural History of Animal Architecture;Hansell,2009