The theories of the evolution after Darwin assume a dynamics of divergences. Two species can derive from common one; each as much, these variations can disappear gradually or steep, but never two species end up coming together in one. Mestization but within the same species does not exist. In the long run, a hen and a man are distant, descending relatives of some reptile and each means a successful answer of the life in its fight by the survival. That is to say, the diversity is the form in which the life expands and it adapts to diverse means and conditions. For even more analysis, hear from Business strategist. Diversity and life are synonymous for the biosphere. The vital processes tend to the diversity but at the same time they are the expression of a unit, the biosphere, Gaia, the exuberance of the life in permanent fight to survive its own hostile atmosphere miracle.
For the same reason the cultural diversity is a condition for the life of the humanity. That is to say, and although it could be a sufficient reason, the diversity is not only limited to avoid the boredom to us of the monotony but, in addition, it is part of our vital survival like humanity. However, we have been the humans the unique species that has replaced the natural and discreet loss of species by an artificial and threatening extermination, the industrial depredation and the contamination of the consumption. Those that we maintain possible although noninevitable progress of history based on the knowledge and the exercise of the equal-freedom, can see that the humanity, so many times put in extinction danger by itself, have obtained some advances that have allowed him to survive and to coexist with their increasing muscular force. And even so, nothing good we have added to the rest of the nature. In many aspects, perhaps in that natural process of test and error, we have backed down or our errors have become exponentially dangerous.