One problem with secondary education's skittishness around spending too much time on evolution, is this widespread misunderstanding about the nature of "survival of the fittest" which paints nature as a cut-throat bloodthirsty beast that punishes physical weakness in individuals.

The entire history of evolution, right down to single-cell organisms, is the history of co-operation and symbiosis; OOP would have been just fine because the tendency of any group of animals to protect their weaker members who benefit the group in other ways, is not at all rare.