There are several hundred breeds of dog,and countless'styles' of cross -bred or mongrel dogs,from which to choose. Many people are drawn to a breed bacause it is familiar,or simply because they like the look of it,but picking a breed solely on the basis that some individuals are appealing can be a mistake. As a rule,bitches are more manageable and easier to train than males. They are also more submissive,and so are less likely to attempt to climb the social ladder and challenge the authority of their owners. Unspayed bitches may have 'mood swings' when they are in heat,as well as during pseudo-pragnancy.
Males tend to be more boisterous and indipendent,and are also more challenging to train.
Uncastreted males tend to roam if not estricted,and are more likely to be aggressive towards other male dogs. Whichever sex you decide upon,it is advisable to have your dog neutered if you do not intend to use him or her for breeding purposes. However,many people prefer cross-bred dogs and mongrels. In this case,knowing who the parents are will give you some ideas as to the kind of dog he will become. However,the mysteries of genetics are such that there are no guarantees that puppy will grow up to resemble one parent more than the other.