宫殿本身的颜色并不是紫色。
他的实验确实展示了颜色本身之间的很多关系：和其他颜色放在一起时它们会如何变化，以及它们之间是如何相互作用的。
His experiments actually did show a lot about the relationships between colors themselves, about how colors change when placed next to other colors, about how they interact with one another.
“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。
"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.
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