Selective Breeding In Pug Dogs

In the above picture is shows what a pug dog looked before selective breeding and what they look like now as a result. Pug dogs are breed for certain characteristics and traits that they feature for example their behaviour, appearance and abilities. Selective breeding is a long process that is usually done by a breeder which requires tolerance as it takes time to produce generations that feature particular traits. This is shown within pug dogs as it has taken several offsprings in order to create the desired dog breed that has become common within its population. Dogs stem from the wolf bloodline