Wiseman Mnguni squats in front of his lion, scraping its teeth with a plastic spoon. His leopard, buffalo, and rhinoceros face the promenade. It is early evening in Durban, a balmy port city on South Africa’s east coast, and the beachfront precinct, known as the Golden Mile, is packed. Teenagers on vacation take selfies outside the fast food stands as joggers thud by and surfers rinse off under outdoor beach showers. Lifeguards patrol the shore, blasting their whistles at errant swimmers.