SKU: 93265903885
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Weight: 17 kg
ecological surveying
Spanish PDF 217KB)
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The Largest Avian Radiation: The Evolution of Perching Birds, or the Order Passeriformes ²⁵ New Releases Weight: 17 kgWith more than 6200 species, the perchingor passerinebirds represent one of the most remarkably rapid proliferations of species. The traditional classification of birds, which was mainly based on comparative anatomical studies made more than 100 years ago, could do little to resolve the relationships among passerines because they were generally too anatomically uniform. Therefore, the classification that was used for most of the 20th century was a
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