Polar bear Knut shows his tongue in the Berlin zoo, Sunday, Dec. 2, 2007. Knut, who celebrates his first birthday on Dec. 5, was rejected by his mother after birth and hand-raised by zookeepers. So potent was the cute cub’s appeal that zoo attendance went up by 20 percent since his public debut in March, officials said. He has his own blog and TV show and appeared on the cover of Vanity Fair, not to mention scores of German newspapers and other publications. (AP Photo/Miguel Villagran)