So bumblebees are one of the few kinds of bees in the world that are able to hold onto the flower and vibrate it, and they do this by shaking their flight muscles at a frequency similar to the musical note C.
Então, as mamangabas são  um dos poucos tipos de abelhas no mundo que são capazes de se prender  a essa flor e vibrá-la, e elas fazem isso agitando  seus músculos de voo, numa frequência similar à nota musical "dó".