darwin 2

            
             Charles Darwin came up with the theory of evolution to explain the diversity, complexity, and origin of life. According to Darwin evolution takes place via Natural selection. Natural selection can explain diversity with in species, but I have yet to see anything that could make me believe that natural selection can create new species, or the origin of life.
             Natural selection is a natural process in which animals better adapted to their environment tend to survive and produce more offspring. This increases the percentage of their genes in the gene pool. Animals which are lesser suited tend to die earlier and as a result produce fewer offspring, therefore the genes they carry tend to diminish within the population. .
             Natural selection helps species of animals survive. A species chance of survival increases because animals, which have defects, tend to die earlier thereby producing fewer offspring, while the animals with "beneficial" genes will tend to live longer and produce more offspring. Natural selection becomes most important when the environment of a species changes. .
             An example of natural selection is the legendry example of the pepper moth. England saw a great shift in the proportion of "black" to "white" peppered moths during the industrial revolution, going from predominately white to predominately black in a few years. The commonly believed cause for this change was that pollution had killed the lichens that covered the trees causing the tree trunks to turn dark. The white moths were easily spotted by predatory birds and were consumed by birds at a higher rate than the black moths. Because white moths were easy targets, the black peppered moths had a survival advantage that resulted in more black moths in succeeding generations. The process started with moths and ended with moths. The only change was the proportion of black moths to white moths. The Peppered Moth case is an example of how environmental pressures in nature can produce changes within an animal population.