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The Guinea baboon (''Papio papio'') is a baboon from the Old World monkey family. Some (older) classifications list only two species in the genus ''Papio'', this one and the hamadryas baboon. In those classifications, all other ''Papio'' species are considered subspecies of ''P. papio'' and the species is called the savanna baboon. The Guinea baboon inhabits a small area in western Africa. Its range includes Guinea, Senegal, Gambia, southern Mauritania and western Mali. Its habitat includes dry forests, gallery forests, and adjoining bush savannas or steppes. It has reddish-brown hair, a hairless, dark-violet or black face with the typical dog-like muzzle, which is surrounded by a small mane, and a tail carried in a round arc. It also has limb modifications that allow it to walk long distances on the ground. The Guinea baboon is the smallest baboon species, weighing between 13 and 26 kg (28.6–57 lbs). Their life spans are between 35 and 45 years. It is a diurnal and terrestrial animal, but sleeps in trees at night. The number of suitable sleeping trees limits the group size and the range. It lives in troops of up to 200 individuals, each with a set place in a hierarchy. Group living provides protection from predators such as the lion and various hyena species. Like all baboons, it is omnivorous, eating fruits, buds, roots, grasses, greens, seeds, tubers, leaves, nuts, cereals, insects, and small mammals. Because it eats almost anything available, it is able to occupy areas with few resources or harsh conditions. Its presence may help improve habitats because it digs for water and spreads seeds in its waste, encouraging plant growth. The Guinea baboon is a highly communicative animal. It communicates by using a variety of vocalizations and physical interactions. In addition to vocalizations to each other, this animal has vocal communications apparently intended to be received and interpreted by predators. Due to its small range and the loss of its habitat, the Guinea baboon is classified as "near threatened" by the IUCN. == Physical description == Baboon refers to the large-bodied primates with marked sexual dimorphism and having females and young that are dependent on males for protection. Guinean baboons have a red tone to their fur, and are sometimes referred to as the red baboon. They lack hair on their hindquarters, and their faces are black with yellow-brown sideburns. Females' rumps are pink in color and males have a mane of fur around their heads and shoulders. A characteristic feature of baboons is their long molars and broad incisors. The long canines are evidence of sexual dimorphism in baboon species. Their forelimbs and hindlimbs are nearly equal in length and their digits on their hands and feet are relatively short and stout, making it difficult for them to climb. Baboons are one of the largest groups of monkeys and are sexually dimorphic in body size (meaning the males and females have differing body sizes).〔 They can range in weight from 13 and 26 kg (28–57 lbs), making them the smallest of the baboon species. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Guinea baboon」の詳細全文を読む スポンサード リンク
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