Rescue Rats to Find Buried Victims

adaminnj writes "Rats are being trained to sniff out the buried victims of earthquakes and bomb blasts and could be sent to search for survivors in the same way as dogs. The idea of being rescued by a rat may not appeal to many people, but they have the advantage of being able to crawl almost anywhere and slip through small holes and crevices. Like dogs, they also have a highly acute sense of smell. But to be successful rescuers, they must be able to home in on victims and signal their position to waiting rescue teams."