Mechanical challenges to freshwater residency in sharks and rays

Published online on 08. January 2015 Mechanical challenges to freshwater residency in sharks and rays Adrian C. Gleiss, Jean Potvin, James J. Keleher, Jeff M. Whitty, David L. Morgan, Jeremy A. Goldbogen ABSTRACT: Major transitions between marine and freshwater habitats are relatively infrequent, primarily as a result of major physiological and ecological challenges. Few species

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