Founded in 1873 and officially open in 1875, the Cincinnati Zoo & Botanical Garden is the second oldest Zoo in the United States. Rated by peer zoological parks and the public as one of the best zoos in the nation, the Cincinnati Zoo continues to set the standard for conservation, education and preservation of wild animals and wild spaces. Over 1.8 million people visit the Zoo annually. The Zoo features more than 500 animal and 3,000 plant species, making it one of the largest Zoo collections in the country.
The Zoo is an accredited member of the American Zoo & Aquarium Association (AZA), and is internationally known for its success in the protection and propagation of endangered animals and plants, and engages in research and conservation projects worldwide. The research conducted here at The Lindner Center for Conservation and Research of Endangered Wildlife (CREW), has made the Cincinnati Zoo an international leader in the protection and propagation of endangered animals and plants around the world.