AP Photo/Xinhua, Ding Lixin
A pair of twin giraffes "Ping Ping" and "An An" is pictured in Shijiazhuang, capital of north China's Hebei Province, Saturday, Dec. 17, 2011. Shijiazhuang Zoo invited more than 10 pairs of twin children to celebrate the one-year-old birthday for China's first twin giraffes here on Saturday, Xinhua said.
AP Photo/POLFOTO, Skandinavisk Dyrepark
In this photo taken Dec. 8. 2011, the polar bear cub Siku is seen at Skandinavisk Dyrepark in Djursland, Denmark. A Danish zoo says a month-old polar bear cub has been taken into care since its mother failed to produce enough milk to feed him. Scandinavian Wildlife Park manager Frank Vigh-Larsen says Siku, now weighing 112 ounces (3,200 grams)_ against 49 ounces (1,800 grams) at birth _ was doing "really fine."
A day-old white lion cub lies next to his mother Sumba in their enclosure at Belgrade's Zoo December 21, 2011. The four white lions cubs, an extremely rare subspecies of the African lion, have become the zoo's greatest attraction. Another four white lion cubs were born in April earlier this year.
Jeff J Mitchell/Getty Images
Yang Guang, a male panda, makes hisr first appearance in front of the media since arriving from China on December 12, 2011 in Edinburgh, Scotland. The eight-year-old pair of giant pandas arrived on a specially chartered flight from China over a week ago and are the first to live in the UK for 17 years. Edinburgh zoo are hopeful that the pandas will give birth to cubs during their 10 year stay in Scotland.