Bumble Bees are very beneficial to our environment. They are able to pollinate plants that honey bees do not. Bumble bees are not aggressive and it is best to leave their nests alone if possible. They usually nest in the ground, though some species do nest above ground. Number of bees in a nest is anywhere from 50-400 bees. Bumble bees are furry and black with some yellow markings. Colors can vary among species. They are known to have a habitat that is higher in altitude and latitude than other bees.