Clever Facts

    2 facts tagged with Clever Facts

    Clever City Birds
    Clever City Birds
    Some birds in cities have learned to line their nests with cigarette butts in order to ward off parasites, as burnt nicotine works as an insecticide to ward off mites, lice, and fleas.
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    Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
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