BSCI 222 Lecture Notes - Lecture 9: Railways Act 1921, Johann Friedrich Blumenbach, Phylogenetics
4 Jan 2016
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Species concept in human evolution-species are not absolute. Neanderthals vs sapiens: history of though based on species concept. Early ideas was 1 species based on early discovered fossils. Later ideas two species based on detailed studies of anatomy. Current answer not clear-probably 2 species with interbreeding. Based on dna and ancestry, sapiens and neanderthals were closely related but probably on way to being different species. Historical-linnaean 1700s-1900s: based on traits, distinct species, results in progressively inclusive groups, ex: 5 kingdoms (animals, plants, fungi, bacteria, protozoans); diversity can not be classified into one group! Modern phylogenetic: based on genetic relationship, results in family trees, ex: fundamental classification of cells. *linnaean: classification into distinct groups, emphasized differences not relationships/basis to what we call race . If species are fixed and separate kinds, so are kinds of people /race. Based on a combo of geography and traits- blumenbach in the 1700s: caucasian/white race, mongolian/yellow race, malayan/brown race, ethiopian/black race, american/red race.
