DAVID AUBREY / SCIENCE PHOTO LIBRARY DAVID AUBREY / SCIENCE PHOTO LIBRARY
Cape sundew (Drosera capensis) plant trapping an insect. The leaves of this carnivorous plant are covered with hairs (trichomes) that secrete a sticky sap that attracts insects. This sap also gives them their dewy appearance. Once an insect is stuck to a leaf, the leaf curls around it and secretes digestive enzymes that liquify the insect. The cape sundew is native to the Cape area of South Africa. Its leaves grow to 6 centimetres in length.
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