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Article
K. S. S. Hall, AuteurThe number of primary feathers in a bird's wing has been used as a systematic character since the first half of the nineteenth century. During the years, though, the definition of which feathers to count as a primary has changed and today the sp[...]
Article
K. S. S. Hall, Auteur ; H. Ryttman, Auteur ; T. Fransson, Auteur ; B. O. Stolt, AuteurThe size of an animal is of utmost importance for its overall success and each species is thought to have its own optimal size. If this is true, size traits ought to be under stabilising selection unless the animal is living in a highly unstable[...]
