Does evolution always make a population better? Can it ever achieve perfection?
NO! Evidence:
- Sexual Selection - Finding and attracting a mate takes precedence over their survival. For example: Peacocks, Elk
- Fecundity>Longevity -Passing down genes has more effect on evolution than living a long life. For example: Salmon. Born in a sterile environment then move and become "eating machines". They produce enough fat to travel back to where they were born. When traveling back upstream they stop eating because they HAVE to die for their species. Their bodies produce nutrients for the food that the babies can live on for a short period of time.
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