Whale Origins--Conquering the Seas

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Science  12 Feb 1999:
Vol. 283, Issue 5404, pp. 943
DOI: 10.1126/science.283.5404.943a

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The Emergence of Whales Evolutionary Patterns in the Origin of Cetacea. J. G. M. Thewissen, Ed. Plenum, New York, 1998. 491 pp. $115. ISBN 0-306-45853-5.

The contributors to this data-rich volume marshal a wide range of evidence (including molecular genetics, functional morphology, isotopic signatures, and paleoecology) to track the transformation of four-footed terrestrial mammals into fully aquatic cetaceans.