A group in Cambodia is using Gambian giant rats to find the nearly two million land mines spread out across the country. These UXOs (unexploded ordnances) injure hundreds of people every year. The rats are adept at sniffing out TNT and pointing their human companions to where the danger lies. The rodents don’t set off the mines because they’re too light, and they can clear a hundred-square-meter area in under 30 minutes, much faster than a human can.
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