The principle holding that in a warm-blooded, polytypic, wide-ranging animal species, the body size of the members of each geographic group varies with the average environmental temperature.
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- 伯格曼原则:在热血的、多特征的、分布广泛的动物种类中,每一地理群组成员身体的大小随平均环境气温而变化的原则。