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Before modern refrigeration, rural communities in Russia and Finland used an unusual technique to keep milk from spoiling: they dropped live brown frogs (Rana temporaria) into their milk containers. Scientists later discovered that the skin of these frogs secretes antimicrobial peptides-natural antibiotics-that kill bacteria and slow spoilage, helping the milk stay safe to drink for longer.Did you know? 🎓

russian frogs milk national science finland
Before modern refrigeration, rural communities in Russia and Finland used an unusual technique to keep milk from spoiling: they dropped live brown frogs (Rana temporaria) into their milk containers. Scientists later discovered that the skin of these frogs secretes antimicrobial peptides-natural antibiotics-that kill bacteria and slow spoilage, helping the milk stay safe to drink for longer.Did you know? 🎓
Before modern refrigeration, rural communities in Russia and Finland used an unusual technique to keep milk from spoiling: they dropped live brown frogs (Rana temporaria) into their milk containers. Scientists later discovered that the skin of these frogs secretes antimicrobial peptides-natural antibiotics-that kill bacteria and slow spoilage, helping the milk stay safe to drink for longer.Did you know? 🎓

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