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The bottoms of their fuzzy feet, it turns out, are covered with microscopic hairs, some of which serve as "spigots" for a sticky silk, which they only turn on when they start to fall.
原来，它们毛茸茸的脚底部覆盖着用显微镜可以看到的毛发，其中某些毛发相当于分泌粘丝的龙头，这些龙头只有当就要摔下来时才会打开。
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