At ZSL Whipsnade Zoo in the UK, the "free-roaming" animals are one of the park's most distinctive features. Unlike most zoos where all animals are behind fences, Whipsnade allows several species to wander throughout its 600-acre site. The most common free-roamers are Maras (large South American rodents that look like a mix between a rabbit and a deer), Wallabies, and several species of small deer including Chinese Water Deer and Muntjac. These animals can often be found lounging in the grass near the walking paths or even "people-watching" near the cafes. Because of these free-roaming inhabitants, Whipsnade has strict rules against bringing pets or assistance animals into certain areas of the zoo to prevent any stress or conflict. In 2026, the zoo has also been praised for its "immersion" zones where animals like lemurs move freely through specific walkthrough exhibits. This open-plan design makes Whipsnade feel more like a safari park than a traditional zoo, allowing for unique "face-to-face" encounters with wildlife as you explore the chalk hills of Bedfordshire.