Zanzibar is a semi-autonomous part of Tanzania in East Africa. It is composed of the Zanzibar Archipelago in the Indian Ocean, 25–50 kilometres (16–31 mi) off the coast of the mainland, and consists of many small islands and two large ones: Unguja (the main island, referred to informally as Zanzibar) and Pemba. The capital is Zanzibar City, located on the island of Unguja. Its historic centre is Stone Town, which is a World Heritage Site.
Zanzibar’s main industries are spices, raffia, and tourism. In particular, the islands produce cloves, nutmeg, cinnamon, and black pepper. For this reason, the islands, together with Tanzania’s Mafia Island, are sometimes called the Spice Islands (a term also associated with the Maluku Islands in Indonesia). Zanzibar is the home of the endemic Zanzibar Red Colobus Monkey, the Zanzibar Servaline Genet, and the (possibly extinct) Zanzibar Leopard.
Endemic mammals with continental relatives include the Zanzibar red colobus, one of Africa’s rarest primates, with perhaps only 1,500 existing. Isolated on this island for at least 1,000 years, the Zanzibar red colobus (Procolobus kirkii) is recognized as a distinct species, with different coat patterns, calls, and food habits than related colobus species on the mainland. The Zanzibar red colobus live in a wide variety of drier areas of coastal thickets and coral rag scrub, as well as mangrove swamps and agricultural areas. About one third of them live in and around Jozani Forest. The easiest place to see the colubus are on farm land adjacent to the reserve. They are accustomed to people and the low vegetation means they come close to the ground.
Rare native animals include the Zanzibar leopard, which is critically endangered and possibly extinct, and the recently described Zanzibar servaline genet. There are no large wild animals in Unguja. Forested areas such as Jozani are inhabited by monkeys, bush-pigs, small antelopes, civets, and, rumor has it, the elusive leopard. Various species of mongoose can also be found on the island. There is a wide variety of birdlife and a large number of butterflies in rural areas.