Dogs are man's best friend but, they were not always like this. Some descendants of wolves never really got domesticated as well as others. That's why we ended up with friendly breeds such as the Golden Retriever and ones as deadly as the Bully kutta.
1. Czechoslovakian Wolfdog. This dog is a mix of German Shepherd and a wolf. It is quick, energetic and extremely fearless. Because of its genetic structure the wolf dog is extremely unpredictable since it reacts to situations both like a wolf and like a dog.
PHOTO: American Pitbull Terrier Dogs are the most loyal of all animals ever domesticated by human beings. Some are great shepherds and guards like the German shepherds and the mastiff dogs. But there are some who are very dangerous and ferocious unless they are well trained, they can cause severe damages or even deaths. Dog breeding is illegal in most of the countries as there were several cases of rabies due to dog bites and deaths reported in various countries due to these dangerous dogs. The following photos