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Modern Evolutionary Theory and Human Evolution James A. Van Slyke.

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Presentation on theme: "Modern Evolutionary Theory and Human Evolution James A. Van Slyke."— Presentation transcript:

1 Modern Evolutionary Theory and Human Evolution James A. Van Slyke

2 Modern Synthesis Darwinian Evolution – Descent with modification from a common ancestor – Small changes gradually occur over time – Natural Selection – different traits promote survival or lead to extinction – Sexual Selection – traits that promote or diminish reproduction

3 Modern Synthesis

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5 Genetic Theory – Mechanism that transfers traits to offspring – Missing piece of Darwin’s Theory Genotype – set of gene’s from individual DNA Phenotype – Observed characteristics produced by a genotype

6 Modern Synthesis Genetic Variation – Mutations – changes in DNA sequence – Gene Flow – movement of genes between populations – Sex – introduce new gene combinations Genetic Variation produces phenotypic variations Phenotypes with adaptive value increase survival and reproduction Adaptive value passed on through genotypes

7 Human Evolution Humans and chimpanzees share 98.5% of the same genes Hominid lineage split from chimpanzee about 6 million years ago Homo sapiens – 200,000 years ago from Africa Many important transitions in human behavior and cognition

8 Primate Evolutionary Tree

9 Important transitions Burial of the Dead – 95,000 years ago – Buried with beads and other symbolic objects – May have religious significance; belief in life after death – Burial site in Israel 30 buried individuals found 9 year old found with a pair of antlers

10 Important Transitions Use of pigments and coloring – 350,000 years ago – Marked persons and objects with color Cave painting and Drawing – 32,000 years ago – Early forms of symbolic thought

11 Important Transitions Cave painting and Drawing – 32,000 years ago

12 Important transitions Figurines and carvings – May have religious significance for different rituals – Early forms of symbolic thought in combining animal with human forms – May also have sexual significance in carvings of the female form

13 Lion-head figure Venus figure

14 Important transitions First religious temple – 11,000 years ago – Turkey – Rows of standing stones – Images of animals – “Gobekli Tepe”

15 Important transitions Çatalhöyük (http://www.catalhoyuk.com/) – 7500 BC – Feasts with animals – Burials of ancestors – Religion and daily life highly integrated – Religion could not be separated from other aspects of culture

16 Çatalhöyük

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