Dr Matthew Gompper is a Professor of Mammalogy in the School of Natural Resources at the University of Missouri, USA, and also directs the university's Program in Conservation Biology. His research focuses on the interactions of free-ranging dogs and wildlife, as well as the ecology and conservation of diverse species of mammalian carnivores that range in size from weasels and martens to bears and tigers. He and his students have worked on these issues across the globe, including in India, Nepal, Brazil, Panama, Mexico and the North-eastern and Mid-western United States.