Phylogeny and Evolutionary History
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Introduction The Linnaean taxonomy and resulting system of scientific names that biologists have used for nearly three centuries did not derive from evolutionary thinking. • The taxonomic system ... was developed by Carolus Linnaeus. • This taxonomy has proved so very useful because of Linnaeus’s insight that organisms can be arranged in a hierarchical classification. • Linnaeus came to this realization without having a theoretical basis for why these hierarchical patterns of similarity should exist. Darwin proved the answer for why patterns are seen. • He recognized that an evolutionary process of branching descent with modification would generate nested hierarchies with similarity as the natural results of phylogenetic history. German biologist, Willi Hennig established the modern approach to classification. • He emphasized that in addition to documenting evolutionary history, phylogenetic trees can help us classify, or systemize, organisms in many ways. • Phylogenetic systematics – classifying organisms according to their evolutionary histories in which phylogenetic trees aid in representing these evolutionary relationships [Show More]
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