> Pregnancy is, it seems, just another (evolutionary) war.

I think this is a useful insight even on a higher level. For evolution (if you want to anthropomorphize it), war and conflict are just another set of tools in the toolbox. Where humans see those as evidence of something going wrong and evil to eradicated, for evolution it's "working as intended".

(Or, if you don't want to anthropomorphize it, an indication how much of evolution and biology is just barely tamed chaos)

(Careful to draw conclusions for human society from this though. People in the past had already seen the Darwinian "struggle between the species" as a model for society, which brought "Social Darwinism" and ultimately the Nazi ideology.

A different conclusion would be that biology is in fact not a perfect ideal to aspire to, and even in the situations where it "works", its factual objectives are not always the same as ours. Which does give legitimacy for the endeavor to improve upon it - for everyone)