By Marylyn Stevens
Everything in a living being is centred on reproduction.  There are living beings on earth today because other beings have reproduced with desperate eagerness for two thousand million years or more.
In the simplest sense the term “breeding” means no more than just reproducing, as a result of a sexual union between two living things of a kind.  This is what goes on in the wild, with the environment as the only controlling factor.  In this way nature does only a limited amount of selecting because it is only concerned with reproducing and survival of the fittest.