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 natural habitat. In 1931, the zoo's bear collection contained 37 specimens. By 1937, the Washington Park Zoo was beginning to show its age. A reptile exhibit was opened in the main zoo building in 1942. George Speidel, zoo director at this time, began planning a new zoo. Although still located in Washington Park, the zoo changed its name to the Milwaukee County Zoological Gardens in 1953. Fundraising took place in 1956 to offset the estimated cost for building the new zoo of US$12.6 million. The Milwaukee County Zoo opened in 1958 with the primate building, monkey island, feline house, pachyderm