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Patrick Guilfoile: Drink to their health, How fruit flies use alcohol to protect their young

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Fruit flies — the little insects that buzz around our bananas in the kitchen during the summer — have to worry about more than how to find enough to eat in our homes. These small insects face attacks from a variety of pathogens and parasites, and they have developed strategies to protect themselves from these assaults. In particular, there are wasps that lay eggs in fruit fly larvae. 

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