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Hominin Evolution
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== <span style="color: #FFFFFF;">Applying</span> == '''Modeling 'The Brain-Size Tradeoff' (Predicting 'Survival' vs 'Caloric Cost'):''' <syntaxhighlight lang="python"> def evaluate_evolutionary_fitness(brain_volume_cc, caloric_intake_kcal, tool_use_lvl): """ Shows why 'Big Brains' are a 'High-Stakes Gamble'. """ # The brain uses 20% of all energy energy_cost = brain_volume_cc * 0.1 # Tools increase food gathering efficiency gathering_efficiency = tool_use_lvl * 50 net_survival_energy = caloric_intake_kcal + gathering_efficiency - energy_cost if net_survival_energy > 2000: return f"STATUS: EVOLUTIONARY SUCCESS. (Brain of {brain_volume_cc}cc is sustainable)." else: return "STATUS: EXTINCTION RISK. (The brain is 'Starving' the body)." # Case: A Homo habilis with a small brain and basic tools print(evaluate_evolutionary_fitness(600, 2500, 2)) # Case: A modern human with no food in the wild print(evaluate_evolutionary_fitness(1400, 500, 0)) </syntaxhighlight> ; Evolution Landmarks : '''The 'Discovery' of Lucy (1974)''' β The "Fossil" that "Proved" bipedalism came millions of years before big brains. : '''The 'Lomekwi' Stone Tools (3.3M years old)''' β The "Oldest Tools" ever found: they "Pre-date" our genus (Homo), proving that "Tool-making" started with "Australopithecus." : '''Svante PÀÀboβs 'Ancient DNA' (2022 Nobel)''' β He "Sequenced" the "Neanderthal Genome," "Revolutionizing" our understanding of "Human Ancestry." : '''The 'Hobbit' (Homo floresiensis)''' β A "Tiny Human" species that lived on an island in Indonesia until ~50,000 years ago, proving that "Evolution" can "Shrink" humans if resources are scarce. </div> <div style="background-color: #8B4500; color: #FFFFFF; padding: 20px; border-radius: 8px; margin-bottom: 15px;">
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