Zoo exhibits where visitors enter enclosures of non-aggressive species, such as lemurs, marmosets, birds, lizards, and turtles. Visitors are asked to keep to paths and avoid showing or eating foods that the animals might snatch. Some zoos keep animals in larger, outdoor enclosures, confining them with moats and fences, rather than in cages. Safari parks, also known as zoo parks and lion farms, allow visitors to drive through them and come in close proximity to the animals. Sometimes, visitors are able to feed animals through the car windows. The first safari park was Whipsnade Park in Bedfordshire, England, opened by the
Milwaukee County Zoo in one location outside their native Democratic Republic of the Congo, and has two cheetahs from the National Zoo in Washington, DC. West Park Zoo opened in 1892, displaying small mammals and birds. The flowing year, the zoo added two cinnamon bears and created an iron bear den. In 1899, the zoo constructed a $2,137 herbivore building that housed a variety of animals. In 1900, West Park Zoo became Washington Park Zoo and two years later, the zoo was expanded to . Even with the Great Depression of the 1930s, the zoo prospered, creating a bear den that resembled bears'