Macaque diets consist primarily of plants and insects and they are found in a variety of habitats. Males live to a maximum of 25 years while females may live up to 30 years. Besides humans, they are the only free-living primates in Europe. Although the species is commonly referred to as the Barbary ape, the Barbary macaque is actually a true monkey. Its name refers to the Barbary Coast of North West Africa. The Barbary macaque population of Gibraltar is the only such population outside of Northern Africa and the only population of wild monkeys in Europe. The Rock of Gibraltar is populated by approximately 230 macaques.