![Why Are Some People Left-Handed?](https://the-happy-now.com/upload/media/posts/2024-02/23/why-are-some-people-left-handed_1708699246-b.jpg)
Today, about one-tenth of the world’s population are southpaws. Why are such a small proportion of people left-handed -- and why does the trait exist in the first place? Daniel M. Abrams investigates how the uneven ratio of lefties and righties gives insight into a balance between competitive and cooperative pressures on human evolution.
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