Institution: | (1) Large Animal Research Group, Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, UK;(2) Wildlife Health and Conservation Medicine Group, Department of Veterinary Medicine, University of Cambridge, Madingley Road, Cambridge, CB3 0ES, UK;(3) Present address: Animal Behaviour Group, School of Psychology, University of Exeter, Exeter, EX4 4QG, UK;(4) Present address: Royal Veterinary College, Hawkshead Lane, Hatfield, Herts, AL9 7TA, UK |