The Smithsonian’s National Zoo and Conservation Biology Institute leads the Smithsonian's global efforts to save species, better understand ecosystems and train future generations of conservationists. Founded in 1889, the Zoo is part of the Smithsonian Institution, the world’s largest museum and research complex. Its two campuses are home to more than 2,100 animals, including some of the planet’s most critically endangered species. Always free of charge, the Zoo's 163-acre park in the heart of Washington, D.C., is a popular tourist destination, welcoming nearly 2 million visitors from all over the world each year. The Zoo instills a lifelong commitment to conservation through engaging experiences with animals and the people working to save them. Today, the Zoo is home to more than 2,100 animals representing almost 400 different species. The Smithsonian's commitment to conservation, research and education extends to its Conservation Biology Institute in nearby Front Royal, Virginia's 3,200-acre campus. Nearly 250 animals representing 20 species live on this campus, where scientists and animal care experts conduct veterinary and reproductive research to save wildlife and habitats. Smithsonian's National Zoo and Conservation Biology Institute researchers also work in field stations in more than 30 countries around the world. Alongside partners, they create and share knowledge to aid in the conservation and restoration of species and habitats. Findings from their studies provide critical data for the management of populations in human care, as well as valuable insights for the conservation and management of wild populations.