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Understanding population differences can help us understand our history.
了解群体差异能帮助我们了解我们的进化历史。
Remarkably, despite significant differences in habitat and behavior, many species of lepidoptera have population cycles of similar length, between eight and eleven years.
值得注意的是，尽管鳞翅目昆虫在栖息地和行为上存在显著差异，但许多种类的鳞翅目昆虫的种群周期相似，在8到11年之间。
In broad terms, the heritability of a trait measures the extent to which differences among members of a population can be explained by differences in their genetics.
广义上讲，性状遗传性衡量的是群体成员间的差异在多大程度上可以用基因差异解释。
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