Summerlander wrote:You see? You've misunderstood me again. It doesn't matter what the individual organism thinks or feels. It all starts with unconscious genetic units. It starts with the "selfish" gene. Genes have phenotypic effects on bodies. DNA replicates itself while bodies, in general, don't. Genes have the potential to be immortal and survive for many generations. Bodies have short lives as they are just vessels. The suicidal person who risks his life to save that of a younger relative is in actual fact aiding the survival of the genes they share. The suicidal person's genes "live" inside the younger relative. The suicidal person is not thinking about saving genes, of course, but he is thinking about saving a loved one. On the surface, by sacrificing himself, his actions are altruistic. At the level of the gene, they are selfish. I hope you get it know. These are not opinions, nesgirl, they are scientific facts and have been mentioned in books like "The Selfish Gene," "The Blind Watchmaker" and "The extended Phenotype."
This is a very convoluted argument. However, from this string of logic the dodo bird went extinct so that other birds would be able to live as humans, cats and rats invaded their habitat. Truth is that there are way more external influences upon life forcing it to adapt and evolve. Even sharks which have remained very similar to their ancestors 1 million years ago have adapted, diversified and evolved.