Are there evolutionary reasons for reproduction?

This type of question indicates that you are still completely misunderstanding the issue.Evolution basically points out that the offspring of one generation is based on the previous generation, thus those that survive and reproduce more successfully tend to become dominant in the population. There is no "intent" behind the process required or indicated.Species don't live longer to better reproduce, or to save energy. They live longer *because* it tends to increase their numbers; or more accurately there are more of those around that are better suited to be around than those that are not. The explanation for this phenomenon might include the conservation of development energy but the mechanism itself "just works".Reproduction and variation don't have "jobs", they have results. It makes no sense to say that a rock falls off a cliff because "it's job is to reach the bottom of the cliff", and it makes no sense to talk about reproduction as having the job of creating variation.

If nobody produces life-sized bobble-head dolls of Luke Perry, why don't we see them everywhere?