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Unformatted text preview: = species, family, suborder, class, subphylum, kingdom How do you classify? Historically: Downward classification by logical division. Analogous to "20 questions". In Aristotle's time things were either animals or plants. One could start by asking oneself: is this an animal or a plant? Does this have feathers or not? and so on down until it was properly placed in its category. Linnaeus believed in the reality of the genus. He used downward classification through his Linnaean hierarchy (kingdom, phylum, class, order, family, genus, species [recall: King Philip Came Over From Germany Speaking]) to reach the genus and then make the final division into the appropriate species. This approach lead to the Binomial nomenclature : Genus + species: Homo sapiens, etc....
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- Fall '10