Tomas Pueyo in Uncharted Territories:
Why is giving birth so dangerous despite millions of years of evolution?
Why do humans only have one child per litter?
Why do human women menstruate?
Why does it take us so long to become adults?
Why are there so many stories about evil stepparents?
Why are partners chosen in arranged marriages different from those in love marriages?
Why are parents of small children so tired?
These and many other questions can be answered by realizing that family members are at war.
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