Elmwood Park Zoo - Norristown near Philadelphia. 150 animals on 16 acres including children's petting barn. General information, education program summary, and zoo overview. The Erie Zoological Park and Botanical Garden - 500 animals representing 100 species on 15 acres. General information, animal photos, descriptions and webcam, education program summary, puzzle, news and special events. Penn's Cave - Centre Hall. All water cavern and wildlife park. Includes information on tours, rates, schedule, events, gift shop and location. Living Treasures Animal Park - Features exotic animals and a petting zoo at locations in Moraine and Laurel Highlands. Includes visitor information and local attractions. National Aviary in Pittsburgh - Pittsburgh. 500 birds representing 200 species. General information, special events, bird photos, descriptions and information, and bird sexing lab services. Philadelphia Zoo - 1800 animals. America's first zoo. General information, program and event summary, a complete list of animals with photos, descriptions, videos and webcams, and information on sponsorship. Claws 'n' Paws Wild Animal Park - Hamlin near Scranton. 300 animal representing 120 species on 30 acres. Admission, directions, exhibit descriptions and animal list. Animaland Zoological Park - Wellsboro in Tioga County. Home to over 200 exotic, wild and domestic animals, with a petting zoo. Location, hours, admissions, services, and local links. Clyde Peeling's Reptiland - Allenwood. Includes information about visiting, travelling exhibits, lectures, and parties. ZOOAMERICA North American Wildlife Park - Hershey near Harrisburg. Admission and hours, education program summary, park map, conservation information and exhibit overview. Pittsburgh Zoo and Aquarium - Pittsburgh. 4000 animals representing 475 species on 77 acres. Includes children's zoo. General information, zoo map, animal photos and descriptions, special events, education program summary and conservation information.