A young Malayan tapir walks in its enclosure in the zoo in Leipzig, eastern Germany, on March 27, 2013. The young tapir that was born in February 2013 was named 'Baru'. (Jan Woitasjan/AFP/Getty Images)
Male walrus Odin is pictured in the Polar Sea enclosure at the Hagenbeck Zoo in Hamburg, Germany, on March 26, 2013. After long preparations four walruses have been brought from the zoo in Moscow to Hamburg. (Christian Charisius/AFP/Getty Images)
A ring-tailed lemur reacts in an enclosure at the Tierpark zoo in Straubing, southern Germany on March 25, 2013. The animals inhabiting the arid regions in the southwest of Madagascar. (Armin Wiegel/AFP/Getty Images)
Olivia, a five-year-old Angolan colobus monkey, clutches her baby which was born March 9, at the Brookfield Zoo on March 27, 2013 in Brookfield, Illinois. The infant monkeys are born completely white, turn grey, and then black, their adult colouration, in approximately three months. Angolan colobuses are native to dense rain forests throughout equatorial Africa. (Scott Olson/Getty Images)
One of the four white Bengala tigers born in captivity on January 14, 2013 at the Buenos Aires zoo, growls during their presentation on March 21, 2013. Their parents are white Bengala tigers Cleo and Rhiano, a young couple living at this zoo. AFP PHOTO/DANIEL GARCIA
This Feb. 19, 2013 photo provided by the Lincoln Park Zoo in Chicago shows a Moholi bushbaby that was born at the zoo in January and has recently ventured from its nest. The tiny primate weighed just 0.3 ounces when it was born. The primates, native to Southern Africa, are very rare in zoos. Today, there are fewer than 20 in zoos in the United States. (AP Photo/Courtesy the Lincoln Park Zoo, Todd Rosenberg)
