Unconscious selection is that which follows from men naturally preserving the most valued and destroying the less valued individuals, without any thought of altering the breed; and undoubtedly this process slowly works great changes.
But it is this very difficulty which the principle of unconscious selection removes.
The action of unconscious selection, as far as pigeons are concerned, depends on a universal principle in human nature, namely, on our rivalry, and desire to outdo our neighbours.
But that it is only a glimmering is proved by the immediately ensuing sentences, which apply this analogy of unconscious selection not to the case of monotypic, but to that of polytypic evolution.
This form may be called unconscious selection, for the breeder selects his birds unconsciously, unintentionally, and without method, yet he surely though slowly produces a great result.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "unconscious selection" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.