Death By Waterslide For Carnivorous Plant's Prey [Video]

Wednesday, December 19, 2012 - 12:30 in Biology & Nature

The specialized hairs on Heliamphora nutans help turn the funnel-shaped pitcher plant into a slippery trap. When I think about plants, "hairy" is not the first word that comes to mind. But it turns out that most plants do grow lots of little hairs--technically called "trichomes" and also, technically, more like cilia than hair--and those hairs are usually water-repellant, causing raindrops to bead up on the plant's leaves like water on a windshield. But scientists have discovered that the hairs on Heliamphora nutans, a species of carnivorous pitcher plants, have the opposite function: they are supremely wettable, causing water droplets to spread and turning the surface of the funnel-shaped plant into an inescapably slippery trap: brightcove.createExperiences(); And here's one more quick clip showing how water spreads over the plant's surface: brightcove.createExperiences(); Other carnivorous plants have specialized hairs that stick to prey, trigger trap movements, and absorb nutrients, but Heliamphora nutans is the first...

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