We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleThe evolution of body size in extant groups of North American freshwater fishes: speciation, size distributions, and Cope's rule.AuthorsKnouft JH; Page LMPublicationThe American naturalist, 2003, Vol 161, Issue 3, p413ISSN0003-0147Publication typearticleDOI10.1086/346133