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The lesser kudu (''Tragelaphus imberbis'') is a forest antelope found in East Africa. It is placed in the genus ''Tragelaphus'' and family Bovidae. It was first described by the English zoologist Edward Blyth in 1869. The head-and-body length is typically . Males reach about at the shoulder, while females reach . Males typically weigh and females . The females and juveniles have a reddish-brown coat, while the males become yellowish grey or darker after the age of two years. Horns are present only on males. The spiral horns are long, and have two to two-and-a-half twists. A pure browser, the lesser kudu feeds on foliage from bushes and trees, shoots, twigs, and herbs. Despite seasonal and local variations, foliage from trees and shrubs constitute 60–80% of the diet throughout the year. The lesser kudu is mainly active at night and during the dawn, and seeks shelter in dense thickets just after the sunrise. The lesser kudu exhibits no territorial behaviour, and fights are rare. While females are gregarious, adult males prefer being solitary. No fixed breeding season is seen; births may occur at any time of the year. The lesser kudu inhabits dry, flat, and heavily forested regions. The lesser kudu is native to Ethiopia, Kenya, Somalia, South Sudan, Tanzania, and Uganda, but it is extinct in Djibouti. The total population of the lesser kudu has been estimated to be nearly 118,000, with a decreasing trend in populations. One-third of the populations survive in protected areas. Presently, the International Union for Conservation of Nature (IUCN) rates the lesser kudu as "Near Threatened". ==Taxonomy and genetics== The scientific name of the lesser kudu is ''Tragelaphus imberbis''. The animal is placed in the genus ''Tragelaphus'' and family Bovidae. It was first described by the English zoologist Edward Blyth in 1869. The generic name, ''Tragelaphus'', derives from Greek word ''tragos'', meaning a male goat, and ''elaphos'', which means a deer, while the specific name ''imberbis'' comes from the Latin term meaning unbearded, referring to this kudu's lack of mane. The vernacular name kudu (or koodoo) is the Hottentot name for the greater kudu, a close relative of this species. The term "lesser" denotes the smaller size and lack of mane of this antelope as compared to the greater kudu. In 1912, the genus ''Ammelaphus'' was established for just the lesser kudu by American zoologist Edmund Heller, the type species being ''A. strepsiceros''. However, today the lesser kudu is placed in ''Tragelaphus'' instead of ''Ammelaphus''.〔 The lesser kudu has 38 chromosomes, but unlike other tragelaphids, the X chromosome and Y chromosome are compound and fused with autosomes from ancestors having a greater chromosome number. 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「lesser kudu」の詳細全文を読む スポンサード リンク
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