In this photo released by Chiuna's Xinhua News Agency, giant pandas Tuan Tuan, top, and Yuan Yuan play in a breeding (饲养) base in Ya'an, southwest China's Sichuan Province on Feb. 17, 2006. The pair of pandas left China Tuesday, Dec. 23, 2008 on a long-awaited goodwill journey to their new home in Taiwan in the latest move symbolizing the warming ties between the rivals.
(AP Photo/Xinhua, Chen Xie)
A cat named Tom dressed as Santa Claus is held by its owner after giving it a bath at a pet shop in Lima, Friday, Dec. 19, 2008.
(AP Photo/Karel Navarro)
In this Nov. 2, 2008 file photo, Pakistani Sunni Muslims devotees return back to their homes on a packed train after attending annual religious congregation (集合, 集会, [宗]圣会) in Multan, Pakistan.
(AP Photo/Khalid Tanveer/FILE)
In this photo released by Chiuna's Xinhua News Agency, giant pandas Tuan Tuan, left, and Yuan Yuan play in a breeding base in Ya'an, southwest China's Sichuan Province on Feb. 17, 2006. The pair of pandas left China Tuesday, Dec. 23, 2008 on a long-awaited goodwill journey to their new home in Taiwan in the latest move symbolizing the warming ties between the rivals.
(AP Photo/Xinhua, Chen Xie)
Two weeks old hippopotamus (河马) Paula plays with her mother Kathy on the first day of her presentation to the public at the Berlin Zoo December 16, 2008. REUTERS/Johannes Eisele (GERMANY). FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS..
Visitors look at a giant ice sculpture of Santa Claus for the upcoming 25th Harbin International Ice and Snow Festival at a park in Harbin, Heilongjiang Province December 24, 2008. China's freezing northern city of Harbin is building what organisers say is the world's largest Santa Claus ice sculpture.
REUTERS/Sheng Li (CHINA)
Penguins wearing Santa Claus outfits stand on a snowy field during a photo call for a promotional event for the Christmas holiday season at the Everland amusement park in Yongin, about 50 km (31 miles) south of Seoul, December 11, 2008.
In this Feb. 29, 2008 file photo, an Aurora Borealis (南极光) spins above the Talkeetna Range and a hay field on Farm Loop Road near Palmer, Alaska.
(AP Photo/Bob Martinson/FILE)
The full moon rises over Fayetteville, N.C. on Friday, Dec. 12, 2008. Friday night's full moon was the closest full moon of 2008, appearing larger and brighter than any full moon this year.
(AP Photo/The Fayetteville Observer,Johnny Horne)