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roan antelope
The roan antelope (''Hippotragus equinus'') is a savanna antelope found in West, Central, East and Southern Africa. It is the namesake of the Chevaline project, whose name was taken from the French ''Antelope Chevaline''.〔(【引用サイトリンク】title=Roan Antelope )〕
Roan antelope are one of the largest species of antelope. They measure from the head to the base of tail and the tail measures . The body mass of males is and of females is . The shoulder of this species is typically around .〔(ANIMAL BYTES – Roan Antelope ). Seaworld.org. Retrieved on 2013-10-10.〕〔Burnie D and Wilson DE (Eds.), ''Animal: The Definitive Visual Guide to the World's Wildlife''. DK Adult (2005), ISBN 0789477645〕〔(Roan antelope videos, photos and facts – Hippotragus equinus ). ARKive (2011-06-28). Retrieved on 2013-10-10.〕 Named for their roan colour (a reddish brown), they have lighter underbellies, white eyebrows and cheeks and black faces, lighter in females. They have short, erect manes, very light beards and prominent red nostrils. The horns are ringed and can reach a metre long in males, slightly shorter in females. They arch backwards slightly.
They are similar in appearance to sable antelope and can be confused where their ranges overlap. Sable antelope males are darker, being black rather than dark brown.
Roan antelope are found in woodland and grassland savanna, mainly in the tropical and subtropical grasslands, savannas, and shrublands biome, which range in tree density from forest with a grassy understorey (such as central Zambezian Miombo woodlands) to grasslands dotted with few trees, where they eat midlength grasses. They form harem groups of five to 15 animals with a dominant male. Roan antelope commonly fight among themselves for dominance of their herd, brandishing their horns while both animals are on their knees.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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