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Ancient teeth reveal forests turned to grasslands in Ethiopia, driving human evolution.
Scientists studying ancient teeth from human ancestors in Ethiopia's Afar region are uncovering how the landscape changed millions of years ago.
By analyzing enamel, researchers found that forests and lakes dominated four million years ago, but tectonic activity and climate shifts led to more open grasslands by two to three million years ago.
This transformation favored grazing animals and shaped the survival strategies of early humans like Australopithecus.
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Los dientes antiguos revelan bosques convertidos en prados en Etiopía, impulsando la evolución humana.