The underlying objective of my current program of research is to examine the physiological mechanisms that underpin the observed relationship between primate behaviour, individual fitness, and population survivability, with a particular emphasis on primate social evolution. I am director of the Swebeswebe Primate Research Project and have studied vervet monkeys and chacma baboons in South Africa since 2012. While most of my research is observational in nature, I also take experimental and mechanistic modelling approaches to the study of primate physiology and behaviour.