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Roundup doesn't just kill bumblebees. It does something subtler and possibly worse. Research from Finnish universities found that glyphosate, the active ingredient in Roundup and the most widely used herbicide on Earth, damages bumblebees' fine color vision and long-term memory. A bumblebee's entire job is built on color memory. It needs to learn which flowers in a given landscape are rewarding, remember them, and navigate back to them efficiently. That skill means the difference between a colony that survives and one that starves. Glyphosate is applied to approximately 90% of US corn and soybean crops. It's been banned in Mexico as well as parts of Europe and Asia. Why can't we find a better way?