bumbling fly    charles darwin    comenius university    dead fly    digestive efforts    digestive enzymes    digestive enzymes.after    electrical impulse    electrical impulses    fifth electrical impulse.the plant    first impulse    fly    flytrap traps.we start    gland cells    green stomach    hedrich’s latest study    inner surfaces of the traps    large fly struggles    life    long time    mystery    next morning    nutrient-poor swamps    open halves of the flytrap    outside world    own tissues.after    plant    plants    primes    production of digestive enzymes    rainer hedrich    second signal.the    sensory hairs    set of transporter enzymes    single impulse    so.the fly    so.the venus flytrap    spike of calcium ions    struggles of its prey    such false alarms    touch    trap    trap opens    trap snaps shut.the fly    traps    trap’s calcium levels    trigger hairs    unpublished work    venus flytrap    water