Nature may be red in tooth and claw. But one plucky caterpillar dresses in orange and black to avoid becoming somebody’s lunch. What’s really surprising, though, is that this distinctive set of stripes can serve as both a warning or as camouflage, depending on how far away it is from the viewer.
大自然可能有红色的牙齿和红色的爪子。甚至是胆大的毛毛虫也“穿着”橙、黑色相间的衣服以免成了别人的口中之食。但真正令人惊讶的是，这种独特的条纹可以作为警告或伪装，而这取决于它离观看者有多远。
Animals can deploy color as a defense mechanism in a couple of ways. Some shades and patterns help potential prey blend into the background. Whereas bold markings often serve as a signal that an animal is unpalatable—for example, chock full o’ toxins.
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