In a Snap: Leaf geometry drives Venus flytrap's bite

10:06am, January 26, 2005

In a mere tenth of a second, without any muscles, a Venus flytrap's jawlike leaves can imprison a hapless insect. Since the time of Charles Darwin, scientists have struggled to understand this feat.

In the Jan. 27 Nature, researchers offer a possible explanation: With its peculiar leaf geometry, the flytrap Dionaea muscipula achieves fast, springlike action that's usually off-limits to plant tissue.

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