BIO 200LLB Lecture Notes - Lecture 35: Foramen Magnum, Thumb, Genetic Drift

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BIO 200LLB Full Course Notes
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BIO 200LLB Full Course Notes
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Document Summary

When darwin wrote the origin of species, he had only one sentence about the topic. In 1859 there was not a single human" fossil known and everything was speculation. Today, we have thousands of hominid fossils and thousands of books and papers on the subject. Though we now know many of the steps along the journey, we are woefully ignorant of the forces that molded our evolution, how much of it was due to. Sexual selection, traits that females or males choose when selecting their mates. Genetic drift, traits that occurred by chance mutation in the small human populations. Gen suwa saw a glint among the pebbles in the desert of ethiopia, he knew immediately it was a human" molar. Near the village of aramis, they found a hominin older than lucy. The team found over 100 specimens of the new species. What do we know about the phylogeny of humans. Nails instead of claws; digits with dermal pads.