HIGHLAND PARK. Rambling over 70 acres, the natural habitats of some 6000 animals are represented in the Asian Forest, African Savanna, Cheetah Valley, and Tropical Forest. The zoo is also home to the PPG Aquarium, which boasts over 40 exhibits that include sharks, penguins, jellyfish, stingrays and an electric eel. At Kid's Kingdom, young visitors may pet many of the critters, from white-tailed deer to kangaroo, and explore the awesome animal-themed playground.