The Flower Feeds Yeast to Create Warmth for Bees

In the natural world, fruit flies and yeast are friends too. Yeasts produce volatile organic compounds that have stinky or fruity aromas like iso amel acetate and ethel acetate. The adults follow the stink to eat the yeast, and preferentially lay eggs on fermenting stuff like fermenting fruits. While some yeast cells get eaten, others get stuck to the fruit fly leg hairs and get carried away to more sugar rich environments where they can grow happily.

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