A nine day old mona monkey is bottle-fed by its keeper on December 19, 2011 at the zoo in Magdeburg, eastern Germany. In the wild, the guenons live mainly in western African forests.
A two-day-old white lion cub playing with its mother Sumba, in Belgrade Zoo, Serbia, Thursday, Dec. 22, 2011. Serbia, Wednesday, April 20, 2011. The four white lions cubs, an extremely rare subspecies of the African lion were recently born in Belgrade Zoo.
A seven month old female baby koala, as yet unnamed, is held by her keeper as she is weighed at Duisburg Zoo, Germany, Wednesday, Dec. 21, 2011. The young koala left her mothers pouch for the first time this week, enabling the keeper to weigh her.
A lion cub which was abandoned by its mother, rests at a wild animal zoo in Qingdao, east China's Shandong province on December 19, 2011. Workers in the zoo are trying to find a substitute way to feed the one-month-old lion.