Human Evolution PDF
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Aarni Auerniitty
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This presentation details human evolution, from primate origins to cultural developments. It covers key adaptations, timelines, and the impact of human actions on the environment. The presentation also includes diagrams and images.
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Human evolution Aarni Auerniitty Primate evolution Evolved around 70 million years ago in Africa From approx. 5000 current mammal species 360 belong to primates Humans belong into family Hominidae...
Human evolution Aarni Auerniitty Primate evolution Evolved around 70 million years ago in Africa From approx. 5000 current mammal species 360 belong to primates Humans belong into family Hominidae Key adaptations Social interactions, taking care of the young Opposing thumbs East African rift valley geographic isolation divided the population to rain forests and savannah Human evolution Human line separated around 7 million years ago Key adaptations Walking on two legs, upright position Using various tools First humans approx. 2,8 million years ago Key adaptations Large brain Using fire Speech Homo Sapiens 200 000 years ago Bottleneck event caused the population of H. Sapiens to decline down to 10 000 individuals or even lower numbers Cultural evolution = Trasferring information accumulated in communities from generation to another awareness Less dependant on nature ability to alter the environment for our own good Other species and nature are falling behind biodiversity crisis, climate change
