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    Strong positive selection pressure requires reproductive ... — Carmelics
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    Challenges→Whatever enables humans to learn and use language would have been subjected to strong positive selection pressure once it began to emerge in the human species.

    Strong positive selection pressure requires reproductive fitness advantages to accrue to individual variation in the trait, but early language may have had negligible individual-level fitness variance.

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    Key Terms

    Fitness variance(measuring how much reproductive success differs)
    The range of differences in reproductive success among individuals in a group; some are much better at reproducing than others, or all roughly equally good.
    Individual variation(what natural selection acts upon)
    The differences between individuals of the same species—like how some humans are taller or faster than others.
    Reproductive fitness(measure of evolutionary success)
    How successful an organism is at surviving long enough to have babies and passing on its genes to the next generation.
    Selection pressure(evolutionary biology concept used here)
    A force in nature that makes certain traits more or less common in a population because they help (or hurt) an organism's chances of surviving and reproducing.

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    negligible(as used to describe weak evidence)
    So small or unimportant that it barely matters or should be ignored.

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    2 topics

    Consciousness & Mind1 linkedPhilosophy of Language1 linked

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    Whatever enables humans to learn and use language would have been subjected to s...

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