David Orr is a consultant plastic surgeon and clinical senior lecturer in surgery and paediatrics at St. James's Hospital and Our Lady's Children's Hospital, where he has worked since 1998, specialising in cleft lip and palate surgery. He qualified in medicine from Trinity College, Dublin in 1986 and completed basic surgical training in Ireland. His MD thesis, based on work carried out at the University of Wales College of Medicine in Cardiff, explored epithelilmesenchymal interactions in cancer and its parallels in wound healing and development. He trained in plastic surgery in London, Oxford, and Manchester before further fellowship training at the Royal Adelaide Hospital and the Australian Craniofacial Unit. He completed an MSc in evolutionary biology at University Colege, Dublin. He is currently involved in the development of cleft surgery services in low income countries. His research interests include developing prediction models for the outcome of cleft surgery and the evolutionary and developmental background to cleft lip and palate.