(Seats reserved for Behavioral Biology majors; other students must receive consent of instructor. CAS BI 225 and CAS BI 407 cannot be taken concurrently and CAS BI 225 cannot be taken following completion of CAS BI 407.) Introduction to the genetics, physiology, neurobiology, ecology, and evolution of behavior. Topics include gene/environment interaction, hormones and behavior, neuroethology, communication, reproductive behavior, evolution of cooperation and altruism, cognition and brain evolution. Emphasis on integrative analysis.