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哺乳动物物种 来自维基百科,自由的百科全书
尖額牛(學名Bos acutifrons)是最古老的牛。牠們一直在印度生存至更新世中期。一般均認為所有牛都是源自於牠們,而原牛可能是於150-200萬年前由牠們演化而來。
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