Apopo, a Belgian de-mining research group train rats and their handlers, saying that the animals have a highly developed sense of smell, are easy to tame and train and cheap and easy to maintain.

• 在一场夺走了上百万条人命的残酷战争结束十三年后，来自西非的大型田鼠现正在莫三比克被用来侦测地雷，这些地雷至今仍威胁成千上万人的生命并且妨碍经济发展。