Did you know that the world's youngest dog is Max. He is 4 years old. But because 1 dog year equals 7 human years, he was actually 28. How did he die? Well, his owner went to feed the cat all the way in the othe bedroom which meant that Max would stay outside, when the owner came out, he/she noticed Max lying on the floor. After contacting the local vet, the owner tried CPR afterwards, the dog was just gone.