It's amazing how animals and humans adapt to changing environmental conditions. Evolution has apparently built in the propensity for animals and humans to spawn more females during food shortages:
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Overall, the ratio of boys to girls born dropped to 0.88. Sons require more reproductive effort than daughters. "They grow a bit faster, they're bigger when they're born," Mace says. Males are also less likely to survive if malnourished as children, and stunted males are less attractive as potential mates. | |
So the girls are easier to raise during troubled times. I'll vouch for that :)
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