Ashley Chance carries a three-month-old western lowland gorilla named Gladys in the outdoor gorilla exhibit at the Cincinnati Zoo, April 30, 2013, in Cincinnati. The baby gorilla was born Jan. 29 at a Texas zoo to a first-time mother who wouldn't care for her. Zoo workers acting as surrogate mothers wear vests and materials to make them appear more like a gorilla. (Al Behrman/AP Photo)