Three-and-a-half-year-old Luna the polar bear made her debut at the Buffalo Zoo. Zoo officials want to rename her, so they’re holding a contest on their Facebook page.
A girl touches the glass barrier between her and a polar bear at a polar ocean park in Wuhan, Hubei province, April 30, 2013. Picture taken April 30, 2013. REUTERS/Stringer (CHINA - Tags: ANIMALS SOCIETY) CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA
A man with his child stands next to Greenpeace environmental activists dressed up as a polar bear on the medieval Charles Bridge in Prague April 29, 2013. The event is part of a campaign to raise awareness about the threats to the Arctic and to advocate a ban on drilling for oil. REUTERS/David W Cer
Aurora, a three-year-old female polar bear, shakes off water after swimming for the first time in the season at the Royev Ruchey zoo in a surburb of Russia's Siberian city of Krasnoyarsk, April 12, 2013. Two female polar bear cubs, Aurora and Victoria, were found without their mother in Russia's Tai