NOTE: The list does not include stillborn young or those that died shortly after birth. The illustration does not include the 16 freshwater stingrays that were born.

SOURCES: Smithsonian’s National Zoo, International Union for Conservation of Nature (IUCN), San Diego Zoo, National Black-Footed Ferret Conservation Center, Woodland Park Zoo, Toronto Zoo, the Cornell Lab of Ornithology, the Maryland Zoo in Baltimore, World Association of Zoos and Aquariums, South African General Consulate, African Wildlife Foundation.