Dogs are known to possess certain skills that we humans lack. And one of them is a strong sense of smell. With more than 300 million odour receptors in their nose they can sense a lot of dangers which we miss. And talking of dangers cancer is one that is plaguing humans for long. But if the recent reports are to be believed then the animals are being trained by sniffing close to 2000 urine and stool samples taken from a hospital in the North of England. The charity that trains the dogs Medical Detection Dogs reportedly said if our