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Science 28 January 2005:
Vol. 307. no. 5709, pp. 527 - 528
DOI: 10.1126/science.1108871
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Perspectives

Also see the archival list of Science's Compass: Enhanced Perspectives

EVOLUTION:
Enhanced: An Eocene Big Bang for Bats

Nancy B. Simmons

Although bats constitute more than 20% of living mammal species, little is known about their evolutionary history. In a Perspective, Simmons discusses a new bat phylogenetic tree (Teeling et al.) that sheds light on the evolution of the only mammals capable of both flight and echolocation.

The author is in the Division of Vertebrate Zoology, American Museum of Natural History, New York, NY 10024, USA. E-mail: simmons{at}amnh.org

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Science. ISSN 0036-8075 (print), 1095-9203 (online)