His research interests lie in sexual selection and communication, and he explores primate signaling behavior from genetic, neuroendocrine, behavioral, and morphological perspectives. Dr. Higham has many on-going projects, ranging from fieldwork on communication systems in several species of macaques, guenons and baboons, to research on game theoretic signaling models and the computational modeling of primate perception. His several dozen publications include Guest Edited special issues of the journal Behavioral Ecology and Sociobiology on the topic of multimodal communication, American Journal of Primatology on the topic of primate signals, and International Journal of Primatology on the topic of primate coloration. His work has been covered by numerous newspapers, journals and blogs, ranging from the BBC and MSNBC to the Times of London and the New York Times.