NPR

The Divisive Diet of Honeybees: Why Some Will Never Be Royals

That stings! A new study suggests that fragments of plant genetic material in the pollen-rich diets of worker bee larvae ensures that they never grow up to be queens.
Honeybee <em>(Apis mellifera)</em> workers tending larvae on brood comb. The larvae that will grow up to be workers have a plant-based diet of a mix of honey and pollen.

When a female honeybee hatches, her future holds one of two possible paths within the hive's caste system. She will become either a worker bee or a queen bee. And her fate is determined in part by the food she eats as a larva.

Larvae that are fed mostly a bitter type of pollen combined with honey, a mixture called "beebread," grow up to be worker bees. They are generally sterile. Future queens, on the other hand, grow up on royal jelly-- a goopy, yellowish substance that is secreted from the glands of worker bees. The queen's sole task in life is to make more bees. She also lives a longer life and has a stinger she can use more than once without dying.

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