Dogs have a special talent in smelling things. I knew that dogs can only smell drugs and people buried underground, and others. But I didn't know they can smell the sign of cancer in urine. And even more, they are very accurate- in the percentage of 90 percent! I was really amazed by this fact. This means dogs can take an important place in medical science. And someday, every hospital in the world might use dogs to detect cancer!

And more, dogs can be a great help in many things such as : Supporting the blind, detecting drugs in airports, making people calm and loving, or smelling people to rescue the buried when natural disasters occur. As I've mentioned before, dogs can smell sign of cancer in urine, too. As you can see, dogs give a lot of help in the society. I think that's because dogs are very intelligent and devoted. Also, they are developed in smelling things. And maybe that's the reason why it makes them so important. 

Dogs take an essential part of science, psychology, and medical science. I hope dogs' role in the society will expand furthermore.