Two weeks ago, among other depressing news like the never ending economic crisis, Syria etc. there was a piece of news about the rats that will be used, for the first time worldwide, by the Dutch police for detecting certain substances like gun powder. It appears that rats have a much better developed sense of smell compared to the dogs that were used until now, they are also cheaper to keep and can be trained within weeks (dogs take years to train). A rat which smells a suspect can give a result within minutes. Incredible rats, don’t you think?
If the idea of rats only makes you think about pest and other filthy things, maybe this picture of the rats’ trainer will make you change your mind: