Just like dogs, rats have an incredible sense of smell. They can pick up scents and extremely faint odors that humans cannot even detect. The African Giant Pouched Rat has a super strong sense of smell which has enabled them to detect land mines and other explosives. They are trained in Tanzania as early as 4 months. They are accustomed to being handled by people and even to ride in vehicles until they reach their destination. By 6 months they have learned to detect the scent of TNT. The rats wear a harness and run along a suspended wire. They are not heavy enough to detonate any of the mines. Since the program began 21 years ago these rats have detected over 100,000 mines also in Thailand, Vietnam and Cambodia. They are now being trained to detect tuberculosis and shipments of endangered animals.