Why are dogs different BREED?

The different breeds are a result of controled breeding, a good example of genetic inheritance. The control in these cases may either be natural forces or human interference. Natural forces such as geological isolation gave rise to such dogs as the Dingo, African Wild dogs, Wolves (Arctic, Red, Timber, Vancouver Island, Ethiopian, ect) foxes and jackels. Human interference has given us Border Collies, Cocker Spanials, Poodles, Yorkshire terriors.