"Our study shows that contrast against the background, rather than color per se, may be more important for object detection by sharks," study co-author Hart said in a statement.

“我们的研究显示，与背景色之间的差别，而不是颜色本身，才是鲨鱼探测目标的更重要依据。”研究者之一哈特在一份声明中说。

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The people preferring the latter hold the statement that communicating with the ones with similar background is much easier and practical.

选择后者的人相信与拥有同样背景的人交流会更容易些也是实际的。

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Substantial without being ostentatious, the Bentley fades into the background in Greenwich and Palm Beach and makes a quiet statement everywhere else.

这款宾利敞篷车皮实而不招摇，不过它们正淡出格林威治和棕榈滩，在其它某个角落静静地诉说自己曾经的荣耀。

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Last week, the police department in Slidell, Louisiana, issued its own statement offering background on the Hakkens and why the boys were taken from the parents last year.

CNN: locates family who fled Florida to Cuba

On Thursday, the police department in Slidell, Louisiana, issued its own statement offering background on the Hakkens and why the boys were taken from the parents last year.

CNN: Search for U.S. couple, their missing sons focuses on Cuba

The statement included technical background research and statistics, asked questions about how and why kids get their hands on guns and came to the evidence-based conclusion that if children have access to guns in their homes or neighborhoods, they are at risk of injury.

CNN: How we can keep kids from shooting people