Why Do Some Insects Walk on Water Without Breaking the Surface?

为什么有些昆虫能在水面上行走而不破坏水面？

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Water striders and other pond skaters stay afloat thanks to surface tension—the skin-like film formed by hydrogen bonds between water molecules.
Their long, thin legs spread weight evenly and are covered with microscopic wax-coated hairs that repel water.

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