by P. G. Willmer and K. Finlayson
|Cross section of a periwinkle (Vinca) flower|
Bumblebees (Bombus spp.) are well known for their abilities to forage at and pollinate flowering plants. However, unlike honeybee workers which are similar in size, bumblebee workers show large variation in individual body size. This variation occurs both within species and within individual nests of highly related sisters. This size variation may contribute to the bees’ efficiency in moving pollen grains between flowers.