Larry Vogelnest has worked as a zoo and wildlife veterinarian with the Taronga Conservation Society Australia since 1990. He is a member of the Australian and New Zealand College of Veterinary Scientists in Zoo Medicine. Larry has been the Senior Veterinarian at Taronga Zoo for 30 years, and in 2023 he took on the role of Senior Veterinarian for the NSW Sentinel Koala Population Monitoring Program. Timothy Portas has worked exclusively with managed and free-ranging wildlife since 1999 and is currently the Wildlife Veterinary Director for RSPCA Queensland. He is a member of the Australian and New Zealand College of Veterinary Scientists in Zoo Medicine, a Diplomate of the American College of Zoological Medicine and an adjunct senior lecturer at Murdoch University.