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Biology / Unit 14   Bio 3555 short lesson, about 20 seconds

Life History Strategy Shaped by Natural Selection

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The idea

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.

In practice

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

Where people slip

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

Your place on the trail

Every lesson rests on earlier ones and opens later ones. Tap any to jump.

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