His work experience is diverse and includes research with the United States Fish and Wildlife Service, United States Geological Survey, California Department of Parks and Recreation, and University of California–Davis Wildlife Health Center as well as veterinary consultation and private practice at locations throughout the United States. Dr. Gibbons is Past-President of the Association of Reptilian and Amphibian Veterinarians and served as Chair the committee to create the American Board of Veterinary Practitioners reptile and amphibian specialty. His work is published in numerous scientific journals, conference proceedings, and lay periodicals, and he has been an invited educator at professional conferences and conservation facilities in Africa, Asia, Europe, South America, and throughout North America. In 2009, Paul was selected by his peers as Exotic DVM of the Year. He currently serves the Association of Zoos and Aquariums as program leader of the Ploughshare Tortoise Species Survival Plan, member of the Radiated Tortoise SSP Advisory Committee, and on the Steering Committee of the Chelonian Advisory Group. He is a member of the IUCN Tortoise and Freshwater Turtle Specialist Group and the Conservation Breeding Specialist Group.