For example, he contrasted the effect of a common wild flower on a grassy bank with that of a gaudy hybrid of the same genus, imported from Japan and blooming under glass in an enameled vase.
To discover whether the Bruce effect is a naturally occurring adaptive strategy, researchers from the University of Michigan observed a wild population of gelada monkeys.
为了调查布鲁斯效应是否是一种自然发生的适应策略，密歇根大学的研究人员对野生狒狒进行了观察。
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Now a study in the journal Science finds that the Bruce effect occurs in the wild, and likely ups evolutionary fitness.