Most of us think of the bumblebee as a fuzzy, slightly clumsy passerby that bumbles from flower to flower. There are more than 250 species of them, and they are among the hardest-working pollinators on the planet. Their secret weapon is “buzz pollination”: they grip a flower and vibrate their flight muscles at more than 130 beats per second, shaking loose pollen that other insects can’t reach. Animals