As it turns out, dogs have yet another extremely life-saving attribute. Medical Detection Dogs, a British nonprofit organization, has specialized in training dogs to detect something that has been claiming people's lives for a long time - cancer.

Take Lucy, for example. After being kicked out of guide dog school for having a nose that was far too sensitive around random scents, she has become one of the most notable dogs in M.D.D.'s program, able to detect cancer from a urine sample with an astounding 95 percent accuracy rate, reported CNN.

As it turned out, Lucy the guide dog school reject was destined for something greater. She was destined to help people by detecting life-threatening diseases.

Claire Guest, the CEO of M.D.D., was among those who have been saved by the extremely sensitive nose of a dog. Back when she was 45 years old, her dog Daisy kept lunging at her chest, as if she was going after a particular scent. Upon checking in with her doctor, Guest found that there was a tumor in the area that Daisy kept lunging at, according to Tempo News.

Her doctors later told her that it was very fortunate for Daisy to have found the tumor at such an early stage, since it was buried deep in her chest. Had she waited for the time when she could have felt the lump herself, it would have been far too late.

The cancer-sniffing dogs are gaining popularity, too, with Britain's National Health Service recently approving trials involving prostate cancer tests using dog power. 

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