At Brookfield Zoo's Tropic World: Africa, JoJo, a 32-year-old male silverback gorilla enters the area, looking around his surroundings, Tuesday, June 26, 2012 in Brookfield. JoJo appears before the public on exhibit for the first time since being sent from the Lincoln Park Zoo, June 26 in Brookfield. The exchange is part of a breeding program for the critically endangered western lowland gorilla species. JoJo has spent the last month acclimating himself to the females and the environment.
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