Cancer, arthritis, and other painful diseases occur in animals just like humans. Elephants in captivity can develop painful toe infections, and crippling arthritis of the wrists and ankles. Living conditions in zoos and circuses lead to pain and suffering often hidden from the public. Catherine Doyle, Director of Science, Research, and Advocacy for the Performing Animal Welfare Society (PAWS) uncovers what life is really like for elephants in zoos and circuses, and what PAWS is doing to improve their lives. Dr. Jackie Gai, Director of Veterinary Services for PAWS then shares how she detects pain in elephants, and some surprising methods of treating it. [PART II]