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FRONTLINE
Tanzania: Hero Rats
Bart Weetjens founded a unique lab in Tanzania dedicated to training rats to sniff out deadly unexploded land mines — the legacy of countless bloody conflicts. Although dogs had traditionally been used to help humans detect mines, Weetjens, who had long felt a special bond with rodents, realized that African giant pouched rats were lighter, cheaper to care for, and less susceptible to disease.
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