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Charles Darwin, aged 7yrs
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Aged 25yrs
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How long necks evolved in giraffes.
What would happen to the giraffes with shorter necks? Discuss.
Natural selection – the survival of the “fittest.”
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Natural selection – the survival of the “fittest.”
Why might the brown beetles have survived? Discuss.(See notes)
Natural Selection
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Can you spot the difference? Discuss.What might they have been used for? Discuss.
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Homologous Structures
Look at the pictures. What do you think ‘homologous’ means?
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What might you infer from these homologous structures?
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Ida goes way back to 47mya
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Brain sizes
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Australopithecus 3.9 – 3mya
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Australopithecus 3.9 – 3mya
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LucyApe like skull.
Human –like pelvis and femur for walking upright.
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Ida
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Monkey DarwinThe Hornet, 1857
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