Cameron Duke of MinuteEarth explained why there are queen bees but no king bees due to the fact that the queen lays all the eggs in the hive and the males who mate with her promptly die.

The queen bee is the only one that can lay eggs and ... are shorter and hairier and have a yellow band near the end of their abdomen. Can carpenter bees sting more than once?

The bee leaves the stinger and venom pouch behind and soon dies due to abdominal rupture ... food bearing a slightly higher sugar content, queen bees are slightly larger than worker bees.