Such distinctions were obviously important to the animals at the time, but paleontologists now must tease apart birds from non-avian dinosaurs.

这种区别无疑对当时的动物非常重要，但现在必须把鸟类和非鸟类恐龙区分开。

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The Pew researchers speculate that this is because more women than men are unemployed by choice, although the study didn't attempt to tease apart that difference.

佩尤的研究人员推测，那是因为比起男性，更多的女性选择赋闲在家，尽管该研究并不想对这种差别进行嘲讽。

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Instead, he said, "it is a pattern, like a bar code with thousands of lines on it," that allows researchers to tease apart the fine points of relatedness among populations.

相反的，他说，“是一种模式，就像上千条线组成的条形码一样，”这使得研究人员能够分别群体中细微的相关之处。

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