This is an ingenious way the Africans trained rats to do what more expensive and difficult to handle dogs do in the rest of the world. https://youtu.be/L0swUc492hU https://youtu.be/DuKp-ctLGI4 This is a good short doc from Mozambique. https://youtu.be/4HxrNYBx3l0 Cambodia using rats for mine detection. https://youtu.be/X0ZxNt39L7I The enterprising Tanzanians figured out how to export rats. LOL https://youtu.be/gM32994CJsE