鹿是偶蹄目的1科，共16属约52种，大多数种类普遍具有的特点是：四肢细长、尾巴较短，雄性体性，大于雌性。
Cloven-hoofed deer is the purpose of Section 1, a total of 16 are about 52 species, most common types of features: slender limbs, short tail, the male body, larger than females.
雌性个体在眼径、头高随体长的增长速度显著大于雄性个体。
Female individual's diameter of eye and head height grow at a remarkably greater speed than male individuals.
雌性个体在眼径、头高随体长的增长速度显著大于雄性个体。
Female individual's diameter of eye and head height grow at a remarkably greater speed than male individuals.
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