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It's part of the trap mechanism. The whole point of the trap - is to ensnare insects which the plant absorbs as food. If the traps were sprung every time something brushed one of the hair triggers, the traps would waste energy and time re-setting. The triggers only activate the trap if two of the three hairs in the trap are touched within 20 seconds of each other.

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9y ago

What else can I help you with?