In the summer of 2013, I visited the headquarters of the organization Apopo in Morogoro, Tanzania, to make a photographic report of its activities. Apopo trains rats to sniff out landmines and tuberculosis. It was the first time that I saw rats not as “bearers of disease” but as fighters against disease and destruction.
I spent time with Apopo staff members out in the field, where they use positive reinforcement to train rats to detect landmines. Unlike the smaller animals many scientists in Europe and North America might be accustomed to working with, Apopo uses the African giant pouched rat. When I visited the training field the rats were in an advanced stage of their training to sniff out TNT. On a 100 square meter field there might be four buried (de-activated) landmines and several control objects. The rats take about nine months to train and they work in conditions ...