Biology / Bio 2309 · Atom · ~20 seconds
Human Lineage: Hominins, Not a Line
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The hominin fossil record, per Bio 1787, shows a branching pattern of coexisting species over time, not one straight line leading to modern humans.
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Several hominin species, including different Homo species, coexisted at points, later going extinct rather than transforming into the next.
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A textbook diagram showing species one after another misrepresents this branching pattern as a single ladder-like progression.