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    • freshwater lakes research

    When fish snack on ‘ghost fleas,’ the neurotoxin they accumulate poses a risk to human fish eaters (Wim Van Egmond/Science Photo Library)

    I ain’t afraid of no ghost fleas

    Scientists are studying a strain of translucent, one-eyed zooplankton that comes out at night. “When you look at live ones under a microscope, they can spin their eye to look at you. You’d think the organism is possessed.”