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The nilgai (''Boselaphus tragocamelus''), sometimes called nilgau, is the largest Asian antelope. It is one of the most commonly seen wild animals of central and northern India, often seen in farmland or scrub forest. The mature male appears ox-like and is also known as the blue bull. A blue bull is called a ''nil gai'' or ''nilgai'' in India, from ''nil'' meaning blue and ''gai'' meaning a bovine animal (literally 'cow'). It is also present in parts of southern Nepal and eastern Pakistan. The species has become extinct in Bangladesh. It was known as the ''nilghor'' (''nil'' = blue, ''ghor'' = horse) during the rule of Aurangzeb in the Mughal era.〔Gautam Masters dissertation unpubl : Dept. of Wildlife Sciences, Aligarh Muslim Univ.〕 It is the only member of genus ''Boselaphus''.〔()〕 ==Description== Nilgai stand at the shoulder and measure in head-body length, with a 45- to 50-cm (18- to 20-in) tail. Males are larger than females, weighing , with a maximum of , compared with the adult female weight of around .〔 The nilgai has thin legs and a robust body that slopes down from the shoulder. They show marked sexual dimorphism, with only the males having horns. Adult males have a grey to bluish-grey coat, with white spots on the cheeks and white colouring on the edges of the lips. They also have a white throat bib and a narrow white stripe along the underside of the body that widens at the rear. The tips of the long, tufted tail and of the ears are black. They also possess a tubular-shaped "pennant" of long, coarse hair on the midsection of the throat.〔 The males have two black, conical horns, arising close together just behind the eyes. The horns project upwards, but are slightly curved forward; they measure between in a fully grown adult. Although the horns are usually smooth, in some older males, they may develop ring-shaped ridges near the base.〔 In contrast, females and young are tawny brown in colour, although otherwise with similar markings to the male; they have no horns and only a very small "pennant". Both sexes have an erect mane on the back of the neck, terminating in a bristly "hog-tuft" just above the shoulders.〔 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「nilgai」の詳細全文を読む スポンサード リンク
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