quiet-the-power-of-introverts-in-a-world-that-cant-stop-talking-susan-cain

health getting into fights for no good
reason.
Male great tits, on the other hand,
have the opposite pattern. This is because
their main role in life is not to
find food but to defend territory. In
years when food is scarce, so many of
their fellow tit birds die of hunger that
there’s enough space for all. The hawkish
males then fall into the same trap as
their female comrades during nutty seasons—they
brawl, squandering precious
resources with each bloody battle. But
in good years, when competition for
nesting territory heats up, aggression
pays for the hawkish male tit bird.
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During times of war or fear—the human
equivalent of a bad nut season for