Zanzibar by the People's Republic of Zanzibar and Pemba, a socialist government led by the Afro-Shirazi Party (ASP). Over 20,000 people were killed and refugees, especially Arabs and Indians, escaped the island as a consequence of the revolution. In April 1964, the republic merged with mainland Tanganyika. This United Republic of Tanganyika and Zanzibar was soon renamed, blending the two names, as the United Republic of Tanzania, within which Zanzibar remains a semi-autonomous region. The 2002 census is the most recent census for which results have been reported. The total population of Zanzibar was 984,625 – with an annual growth rate
Wildlife of Zanzibar mango. Along with small animals, Zanzibar is known for several oversized species, such as the giant rat ("Cricetomys gambianus cosensi") which can be up to a metre (3 ft) long with the tail. Dugong, internationally endangered species still occur in the region. Birds found in Zanzibar including Pemba Island and Mafia Island (not governed by the semi-autonomous region of Zanzibar), are about 240 species of which: globally threatened species are four, introduced species is one and Endemics are species are eight. The genera of the birds and some of the details of extirpated, introduced, vulnerable and threatened spices are given