A birthday celebration was held for two year old Patty and Nayembi gorillas in the Regenstein Center for African Apes at the Lincoln Park Zoo on November 8, 2014. Celebrating with them were their roommates: Kwan, a male, Rollie, mother of Nayembi, Bana, mother of Patty, and Bahati, an adult female. Party favors consisted of paper mache pinata balls full of popcorn and treats and hanging blankets to play with. | Al Podgorski / Sun-Times Media