sweden crow cigarette In Sweden, a startup tested a machine that rewards crows with food every time they drop butts into it. The idea sounds unbelievable, but the goal was simple: turn one of In Sweden, an innovative project

In Sweden, an innovative project has demonstrated how intelligent birds can help tackle urban litter. Researchers and a startup called Corvid Cleaning trained wild crows to collect cigarette butts from the streets Watch: Wild crows trained to clear cigarette butts from streets in Stockholm, Sweden In Sweden, innovation took a wild turn literally , A startup called Corvid Cleaning began training crows to clean the streets by picking up cigarette butts the most common form of litter in the Swedish startup's device trades food for litter, reduces cigarette butts

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