Difference in yorkies & hair

[bigdog]

Why in the world are there so many type of yorkies? None of mine actually look alike and Sugar had two AKC pups that was opposite. One had heavy thick coat and the other a thin coat with different texture. her hair is growing long but much thinner than her sisters. Why are they so different. I would think all Yorkshire terriers AKC would look alike. Why are some noses long and ears too big and some short? People call wanting small noses and heavy coats. I never know what they are going to look like. Both parents are standard yorkies. I'm just curious and would like some info on this. This is the only breed of dog that i know of with so many different looks. I still think they all are adorable. Just currious.

[chachi]

I dont know why they look so different from one another but it is the reason I love this breed. Each yorkie is unique