臭鼬是夜行性动物--它看起来像是睡着了，谢天谢地，它的尾巴是垂下来的。
Skunks are nocturnal animals — it appears to be asleep, and thankfully, its tail is down.
这种夜行性青蛙原本生活在亚马逊雨林茂密的树叶中，它们是贪婪的进食者，采用埋伏战术捕食猎物。
The primarily nocturnal frogs live among the leaf litter in the Amazon rainforests. They are avid feeders, employing a sit-and-wait ambush on their prey.
红光在10公尺以下的深处就会消散，所以这条鱼身上的红色调会在较深处呈现黑色，让这种夜行性猎食者在某种程度上能隐形。
Red light dissipates beyond about 30 feet (10 meters), so the reddish hue of this fish would appear black in deeper waters, allowing some degree of invisibility for this nocturnal hunter.
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