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Biology  /  Bio 3555  ·  Atom · ~20 seconds

Life History Strategy Shaped by Natural Selection

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A species' life history — age at first reproduction, offspring per event, parental investment — is shaped by selection to maximize lifetime reproductive success under its mortality pattern.

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A Type III species like a fish produces many offspring with little care, matching high early mortality.

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Life history traits trade off — selection cannot maximize offspring number, size, and parental investment at once.