Owens and Olson hypothesize that the presence of carotenoids, as signaled by coloration, would be meaningful in the context of mate selection if carotenoids were either rare or required for health.

欧文斯和奥尔森假设，如果类胡萝卜素是稀有的或对健康有要求的，则通过着色指示的类胡萝卜素的存在在配偶选择的背景下将是有意义的。

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This, the researchers say, suggests an evolutionary component is at work for mate selection.

研究者说，这反映了对配偶选择起作用的一个进化因素。

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Drea suggested that when an animal's scent is "off", confusion in mate selection can result. She added that it's some possibility to apply her research to humans.

迪亚还提到，动物气味信号的“关闭”还会导致配偶选择上的混乱，并且有可能将此项研究运用到人类身上。

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Republicans criticized Granholm for dithering over her running mate selection while Posthumus moved deftly to name state Sen.

CNN: Granholm wins in Michigan

Still, with Mr. Ryan so clearly associated with GOP economic policy, Obama aides argued that his selection as running mate would help make their case that the election is a choice between two competing visions, rather than a referendum on Mr. Obama and his handling of the economy.

WSJ: Mitt Romney Picks Paul Ryan as Vice Presidential Running Mate

During his AP tenure, King broke several major political stories, including Michael Dukakis' selection of Lloyd Bentsen as his running mate in 1988 and Clinton's selection of Al Gore in 1992.

CNN: About