APOPO is a social enterprise that trains rats, called HeroRATs, to detect landmines and tuberculosis. The rats are intelligent, have a strong sense of smell, and can search an area 100 times faster than manual detection. APOPO has trained over 50 rats for landmine detection in Mozambique. The rats have also screened over 15,000 patients for TB in Tanzania, detecting cases missed by other methods. APOPO operates in Tanzania, Mozambique, and plans to expand to other African countries. It is funded through governments, foundations, and individual donors.