Getting a dog must be a merry moment for those who want to expand their families. The happiness within their kids is obvious when they adopt a puppy, right? Yet what happens if the puppy turned out to be what you had never expected. Can all the joy you had turn in to fear? “Yes” would be the answer of Su Yun and her family. They noted that something was not okay with their dog soon after adopting it. Their story was so astounding that the National Geographic had to interfere and tell the world the truth.