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牛科哺乳动物的一个亚科 来自维基百科,自由的百科全书
除了湖羊兩性都無角外,兩性都有角。雄性角大於雌性角。角多扁平,斷面略成三角形,表面有許多環行橫棱隆起。
羊亞科生物自中新世開始就已經存在,早期體型和現在的髭羚屬生物比較像[1]。
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