Philadelphia Zoo

The Philadelphia Zoo, located in the Centennial District of Philadelphia on the west bank of the Schuylkill River, holds the distinction of being the first true zoo in the United States. Chartered by the Commonwealth of Pennsylvania on March 21, 1859, its public opening was delayed until July 1, 1874, due to the Civil War. Initially opening with 1,000 animals, the zoo has grown to encompass 42 acres and is home to nearly 1,300 animals, many of which are rare and endangered.

History and Development

The inspiration for a zoo in the U.S. arose from visits to the London Zoo by members of Philadelphia's intellectual class. Dr. William Camac was a key advocate for its establishment, leading to the incorporation of the Zoological Society of Philadelphia in 1859. The society secured 33 acres of land, previously owned by John Penn, for the zoo's site. The Victorian-era architecture and landscaping from its opening are still reflected in the zoo's grounds today.

The zoo's opening marked it as the sole institution of its kind in the New World at the time. Its early exhibits featured a variety of mammals, birds, and reptiles. The 1876 Centennial Exposition, held nearby, significantly boosted zoo attendance, setting a record that remained for decades.

Research and Conservation

A pioneering move was the establishment of the Penrose Research Laboratory in 1901, the first of its kind in any zoo. This laboratory focused on animal health, contributing to reduced disease rates and increased longevity among zoo inhabitants through preventive medicine and necropsies. Philadelphia Zoo has also developed a distinguished breeding program, achieving numerous conservation 'firsts,' including the first successful births of orangutans and chimpanzees in a U.S. zoo, the first cheetahs born in a zoo, and the first successful births of echidnas and giant river otters in North America.

The zoo has been involved in critical conservation efforts, such as the Guam Bird Rescue Project in 1983, aimed at saving endangered bird species like the Guam kingfisher and Guam rail from extinction through captive breeding programs. It also pioneered captive management of flamingos, achieving successful breeding of Chilean and greater flamingos.

Notable Features and Exhibits

A signature innovation at the Philadelphia Zoo is the Zoo360 animal exploration trail system. Launched in 2011 with Treetop Trail, this network of see-through mesh trails allows animals to travel throughout the zoo, extending their habitats beyond traditional enclosures. Subsequent additions include the Great Ape Trail, Big Cat Crossing, Gorilla Treeway, and Meerkat Maze.

Other key features include the Rare Animal Conservation Center, showcasing endangered species; Hamilton Family KidZooU & Faris Family Education Center, a LEED-certified children's zoo with ecologically conscious features; and various themed exhibits such as African Plains, McNeil Avian Center, Big Cat Falls, PECO Primate Reserve, and the Reptile and Amphibian House.

The zoo has also experienced tragic events, such as a fire in 1995 that resulted in the loss of 23 animals, prompting the installation of fire detection equipment throughout the zoo. Despite challenges, the Philadelphia Zoo continues to be a vital center for public education, animal welfare, and global conservation.