Fossils unearthed in Ethiopia are reshaping our view of human evolution. Instead of a straight march from ape-like ancestors to modern humans, researchers now see a tangled, branching tree with multiple species coexisting. Newly discovered teeth reveal a previously unknown species of Australopithecus that lived alongside some of the earliest Homo specimens nearly 2.8 million years ago. This suggests that nature tested multiple versions of “being human” before our lineage endured.
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