New Child Fossil Teeth Reveal Why Humans Developed an Unusually Long Childhood

Research on fossil teeth from a 1.77-million-year-old early Homo specimen challenges the “big brain, long childhood” hypothesis. The study suggests that the extended childhood seen in humans may have evolved as a result of cultural transmission, not just brain growth. By analysing dental growth patterns, scientists show that Homo’s development was marked by a longer…

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