In this photo taken April 2, 2011, and provided by Chicago's Lincoln Park Zoo, a 3-month-old white-cheeked baby gibbon chews on a rope as his mother, Burma, looks on at Lincoln Park Zoo. The zoo ... more 
In this photo taken April 2, 2011, and provided by Chicago's Lincoln Park Zoo, a 3-month-old white-cheeked baby gibbon chews on a rope as his mother, Burma, looks on at Lincoln Park Zoo. The zoo confirmed Tuesday, April 12, 2011, the baby gibbon, born in January, was a boy and announced that his name is Sai. It means "son" in Taiwanese. White-cheeked gibbons are native to parts of southeast Asian. less 
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Associated Press | Photo By Lincoln Park Zoo, John Kortas
Tue, Apr 12, 2011 1:59 PM EDT