Mutation causes a defect in one of the three enzyme that processes pyruvate
The flattening of our solar system likely helped changed random motions into more orderly ones
Natural selection acts for the good of the species. The fittest organisms in a population are those that are strongest, healthiest, fastest, and/or largest. Natural selection is about survival of the very fittest individuals in a population. Natural selection produces organisms perfectly suited to their environments.
Overproduction obviously benefits the survival of fish species greatly.
