A hamadryas baboon cub born on Nov. 8 in Berlin. | (AP Photo/Michael Sohn)

A cub, born on Oct. 30, sits next to its dad, Zevs, in Novosibirsk, Russia. | (AP Photo /Ilnar Salakhiev)

This Hartmann's Mountain zebra — a threatened species native to southern Africa — was born on Oct. 29 at the Zoo of the Parc de la Tete d'Or in Lyon, France. | (Alexander Roth-Grisard/Getty Images)

Asian elephant calf Lalana, born in early October, plays at the Safari Zoo in Israel on Ot. 13. | (Uriel Sinai/Getty Images)

An eight-day-old white lion cub plays with a toy at Belgrade Zoo in Serbia on Oct. 4. | (REUTERS/Marko Djurica)

King, an Eastern black rhinoceros born Aug. 26, makes his public debut with his mother at the Lincoln Park Zoo in Chicago on Sept. 17. | (Scott Olson/Getty Images)

A visitor holds an albino hedgehog at a private zoo in Moscow on Aug. 22. Three of these rare albino hedgehog babies were born on the same day as Britain's new prince, so it's fitting that they were named George, Alexander, and Louis. | (AP Photo/Alexander Zemlianichenko, Jr.)

Four caracal cubs, born July 21, make their public debut at the Animal Park Zoo in Berlin on Aug. 30. | (AP Photo/Markus Schreiber)

A six-day-old giraffe calf is framed by father Buddy (left) and mother Jacky at their enclosure in Buenos Aires' zoo on July 16. | (REUTERS/Enrique Marcarian)

Three recently arrived baby meerkats, born June 21, play in their enclosure at Bristol Zoo Garden in England on July 23. | (Matt Cardy/Getty Images)

Newborn camel Amelia, born March 25, is seen with her mother at the Bioparco Zoo in Rome on April 10. | (Giorgio Cosulich/Getty Images)

Mother Changa-Maidi holds her baby, born in late January, on Feb. 22 in Muenster, Germany. | (AP Photo/Martin Meissner)