Rats have an exceptional sense of smell. They can distinct between many types of smell but they can map them in their mind.So sensitive the rat`s nose is that Belgian health workers in Africa have been able to train native species to detect TB and the other hazard of detecting land mines. Land mines are triggered by a load of 5 KG but the African giant pouch rat weigh 1.5 KG. Another research is in progress to carry camera on their backs, and crawl under earthquake rublesimages (29)-african giant pouch rats to look for survivors