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
World War Zoo gardens set up Pig Clubs, feeding and fattening livestock on food scraps including the London police pig club, run in the empty cages of ZSL Regent's Park London Zoo, the usual occupants having been evacuated to Whipsnade. Zoo staff at London Zoo planted a 10 pole plot allotment with tomato seeds sent from America and also hosted a National Wartime Utility farm and garden exhibition was set up at ZSL London Zoo, entitled the "Off The Ration" Exhibition to encourage visitors to grow their own crops and livestock. The Imperial War Museum exhibition in London in 2010 called Ministry of Food