Experts in Mozambique find a new way to detect landmines. They use rats which is much less risky and costly.
The mastermind behind the idea is Bart Weetjens, who works for a charity clearing mines. The charity explains that these "hero rats" systematically sniff out the suspected areas in half-meter lanes for full clearance. When a rat indicates a mine, a metal detector will be used to clear a safe lane. But why rats? Well, Gambian rats are highly intelligent and able to walk over mines without detonating them. These rats can cover fourteen times more land than a human cutting back on the cost and risk. So far, rats have cleared two thousand and five hundred mines which could help Mozambique declare itself mine-free by the end of 2014.