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。

youdao

Mate selection is a market, and marriages occur only if they are profitable for both parties involved.

伴侣的选择是一个交易，婚姻只有在参与的双方都可从中获利时才会发生。

youdao

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。

youdao

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