Bumblebees collect nectar

Bumblebees are large, densely pubescent bees. Sometimes they are called warm-blooded insects, because when the strong pectoral muscles of the bumblebee work, a lot of heat is generated, and its body temperature rises to 40 ° C, exceeding the ambient temperature by 20-30 ° C. In order to keep warm, the bumblebee does not need to fly, it can, while remaining in place, quickly contract muscles, while producing a characteristic humming sound. "Warm-bloodedness" allows bumblebees to live in a very harsh climate - in the tundra and high in the mountains. Bumblebees live in Eurasia, Africa and America.