

An Indian lion, Joy, relaxes with her 2-month old cub in the Zoo of Zurich, Switzerland, on Sept. 15. Patrick B. Kraemer/Keystone/AP/File
A baby cheetah is fed at a Royal Society for the Conservation of Nature shelter in Amman, Jordan, on Feb. 18. Ali Jarekji/Reuters/File
An eight-week-old female lion cub swims through fall leaves during a swim test at the National Zoo in Washington, on Oct. 26. Jacquelyn Martin/AP
A newborn lion cub plays with its mother, Zeina, inside their cage at Jordan's zoo in Yaduda, on Aug. 4. Ali Jarekji/Reuters/File
A ten-week-old white lion cub plays with a South African vuvuzela near Rustenburg, South Africa, on June 13. Kirsty Wigglesworth/AP/File
A two and a half month old lion cub is carried by a veterinarian at Lecoqc zoo in the outskirts of Montevideo, on Aug. 13, 2009. Andres Stapff/Reuters/File
One-Month-old lion cub, Mello, lays his head on the paw of his mother Veni at Prigen Safari Park in Pasuruan, East Java, Indonesia, on Mar. 18. Trisnadi/AP/File
A white lion cub yawns at a wildlife zoo in Schloss-Holte Stukenbrock, Germany, on July 14, 2008. Alex Grimm/Reuters/File
Lion cubs are seen in their enclosure at Braila Zoo, north-east of Bucharest, on June 4, 2008. Bogdan Cristel/Reuters/File
A five-week-old male lion cub rests under a bench at the Fuji Safari Park in Susono, Shizuoka, west of Tokyo, on April 22, 2008. Toru Hanai/Reuters/File
Holger Hollemann/Newscom/File