These rats sniff out landmines that are filled with TNT. They are trained by a Dutch nongovernmental organization in Tanzania. Whenever they make positive detection they are rewarded with some food. Once these rats are trained they will be able to clear a 200 square foot minefield in about an hour and a half. This is much faster than a human and so far they have helped to re-open over 2 million square miles of land in Mozambique.
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