Lager lovers everywhere may have to thank the birds for their favorite brew. Scientists suspect that migrating birds spread a yeast—Saccharomyces eubayanus—used to create lager around the world from its original location in South America, The Guardian reports. Once S. eubayanus made it to Europe, researchers think it grew and hybridized with another yeast, becoming an ingredient Bavarian monks used to make the beer. The findings were published this month in Molecular Ecology.
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