Biology - Evolution - Human evolution - Key Steps in Human Evolution

5 key evolutionary transitions. Step 1: 'BIPEDALISM (~6 mya) - Walking upright on two legs. Freed the hands for tools and carrying. Australopithecus was bipedal but still had small brains. Evidence: footprints at Laetoli, Lucy's hip bone structure.' Step 2: 'TOOL USE (~2.6 mya) - Homo habilis ('hand

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Biology - Evolution - Human evolution - Key Steps in Human Evolution
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Biology - Evolution - Human evolution - Key Steps in Human Evolution

vivmagarwal
vivmagarwalJan 29, 2026

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5 key evolutionary transitions. Step 1: 'BIPEDALISM (~6 mya) - Walking upright on two legs. Freed the hands for tools and carrying. Australopithecus was bipedal but still had small brains. Evidence: footprints at Laetoli, Lucy's hip bone structure.' Step 2: 'TOOL USE (~2.6 mya) - Homo habilis ('hand

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BiologyEvolutionClass 12, A Level, Class 12, DP Grade 12, Grade 12

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