A beekeeper is a person who keeps honey bees. Honey bees produce commodities such as honey, beeswax, pollen, and royal jelly. Beekeepers also use honeybees to provide pollination services to fruit and vegetable growers; raise queens and bees to sell to other farmers, and to satisfy scientific curiosity. Many people keep bees as a hobby. Others do it for income, either as a sideline to other work, or as a commercial operator—depending mostly on the number of colonies they maintain.