Industrious little bees

It is said that the industrious little bees, this sentence is not exaggerated at all, a worker bee contributes 9.45 grams of pollen to the bee colony in his lifetime, working more than 12 hours a day. Fly 40 kilometers a day, enter and exit the hive more than 40 times, collect 0.03 grams of pollen each time, and collect 0.27 grams of pollen in a day. Almost all the work in the hive is done by worker bees. Such as cleaning the hive, feeding the queen bee, feeding the baby bees, making the nest spleen, guarding outside the hive, picking pollen, making honey and so on. Worker bees also have the shortest lifespan, averaging around 30 to 40 days.