Bristol Zoo is a zoo in the city of Bristol in South West England. The zoo's stated mission is "Bristol Zoo Gardens maintains and defends biodiversity through breeding endangered species, conserving threatened species and habitats and promoting a wider understanding of the natural world".
The mammal collection at the zoo numbers around 300, representing 50 species, including: okapis, which Bristol was one of the first zoos in the world to breed, Asiatic lions, pygmy hippos, and red pandas. Among species now on view at Bristol which are rare or absent in other UK zoos are Livingstone's fruit bats and successful breeding groups of western lowland gorillas and aye ayes.
The zoo's Twilight Zone was the first of its kind when it opened, there are many other indoor exhibits including an insect and reptile house and aquarium meanwhile outside there are several aviaries and a seal and penguin enclosure. The lakes' islands are home to gorillas, tamarins, marmosets, gibbons and pelicans.