The Barbary macaque (Macaca sylvanus), also known as Barbary ape or magot, is a species of macaque unique for its distribution outside Asia. Found in the Atlas Mountains of Algeria and Morocco along with a small population of uncertain origin in Gibraltar, the Barbary macaque is one of the best-known Old World monkey species. The Barbary macaque is of particular interest because males play an atypical role in rearing young. Because of uncertain paternity, males are integral to raising all infants. Generally, Barbary macaques of all ages and sexes contribute in alloparental care of young. Macaque diets consist primarily of plants and insects and they are found in a variety of habitats. Males live to around 25 years old 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 Northwest Africa. The Barbary macaque population of Gibraltar is the only such population outside Northern Africa and the only population of wild monkeys in Europe. There is also a population of approximately 200 at the Affenberg in Salem, Germany. The monkey is yellowish-brown to grey with a lighter underside. The Barbary macaque has a mean body length of 556.8 mm (21.9 in) in females and 634.3 mm (25.0 in) in males, and mean body weight is reported to be 9.9 ± 10.3 kg (21.8 lbs) in females and 14.5 ± 17.5 kg (32.0 lbs) in males. Its face is dark pink and its tail is vestigial, measuring anywhere from 4 to 22mm. Males often have a more prominent tail. The front limbs of this monkey are longer than its hind limbs. Females are smaller than males. The Barbary macaque is mainly found in the Atlas and Rif Mountain ranges of Morocco and Algeria. It is the only species of macaque that is distributed outside Asia. These animals can occupy a variety of habitats, such as cedar, fir, and oak forests, or grasslands, scrub, rocky ridges full of vegetation. Most Barbary macaques inhabit cedar forests currently in the Atlas Mountains, however, this could reflect the present habitat availability rather than a specific preference for this habitat. The diet of a Barbary macaque consists of a mixture of plants and insect prey. M. sylvanus consume a large variety of gymnosperms and angiosperms. Almost every part of the plant is eaten, including flowers, fruits, seeds, seedlings, leaves, buds, bark, gum, stems, roots, bulbs, and corns. Common prey caught and consumed by Barbary macaques are snails, earthworms, scorpions, spiders, centipedes, millipedes, grasshoppers, termites, water striders, scale insects, beetles, butterflies, moths, ants, and even tadpoles. Their main predators are leopards, eagles, and domestic dogs. The approach of eagles and domestic dogs is known to elicit an alarm call response.