In other words, natural selection decides which behaviors will survive the same way natural selection determines which species will survive. Some behaviors impede an individual s chances of survival in a community. I believe that this type of reasoning regarding morality is flawed. Let us examine how natural selection really works in nature. There are certain bees called drones who s only purpose, as far as the hive is concerned, is to mate with the queen.
Drones die immediately after mating.
Some drones, however, miss their chance to mate and are still alive after the queen has mated. These drones are now useless as far as the rest of the hive is concerned. The other bees respond to this situation by killing these unproductive drones. So the rules of natural selection seem imply that killing the unproductive members of a society is the way to increase the odds that you and your community will survive. Human beings do not engage in the same type of behavior, nor should they.