When Hummingbirds Visit, This Flower Pops Open like a Jack-in-the-Box

Most plants are sneaky. You think they’re staying put, until one morning when you wake up to find your houseplant bent toward the window, or a vine that’s clambered up your fence. But other plants operate more quickly. They close up their leaves at a touch, or fling their pollen onto a bee. Researchers discovered a previously unknown bit of plant acrobatics in Costa Rica. There, a flower works like a jack-in-the-box to shove its stamens into a hummingbird’s face.

Dusty Gannon, a PhD s

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