BUMBLEBEES’ ROUND, HAIRY BODIES are magnets for pollen. Inside flowers, they often “slip, almost fall and somersault,” says conservation biologist Leif Richardson of the Xerces Society for Invertebrate Conservation, an international nonprofit. “They make a huge mess and get pollen all over themselves, which makes them effective pollinators for plants,” Richardson says.
Being relatively big and covered in black-and-yellow fuzz allows the world’s roughly 250 bumblebee species to withstand more frigid temperatures than honeybees, which are generally daintier and less hairy, and are not native to North America. This makes bumblebees key pollinators in colder, higher-elevation regions such as the Sierra Nevada, the Cascades and the Rocky Mountains of North America.
Bumblebees also best honeybees as pollinators for the 6 percent of flowering plants, including blueberries, bell peppers, eggplants and tomatoes,…