In this image courtesy of the San Diego Zoo, a day-old southern white rhino calf stands on its wobbly legs on July 29, 2019, at the Nikita Kahn Rhino Rescue Center at the San Diego Zoo Safari Park, in Escondido, California. - The southern white rhino conceived through artificial insemination was born at the San Diego Zoo in what was called a historic milestone that could help save a subspecies from extinction. The calf was born on July 28 and the mother named Victoria remained calm during the 30-minute labor, zoo officials said in a statement. "We are so pleased Victoria and the calf are doing well," said Barbara Durrant, the director of Reproductive Sciences at the zoo. "She is very attentive to her baby, and the calf is up and walking, and nursing frequently. (Photo by Ken Bohn / San Diego Zoo Safari Park / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / San Diego Zoo Safari Park / Ken Bohn" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS / PERMITTED USE: Images are provided to the media solely for reproduction, public display, and distribution in a professional journalistic context in connection with newspaper, magazine, broadcast media (radio, television) or internet media (ad enabled blog, webcasts, webinars, podcasts). Images may not be made available for public or commercial download, licensing or sale.