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Science 19 March 2004:
Vol. 303. no. 5665, pp. 1779 - 1781
DOI: 10.1126/science.1096413
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Perspectives

EVOLUTION:
Parallel Evolution Is in the Genes

Hopi E. Hoekstra and Trevor Price

Complex plumage patterns seem to have evolved independently among many very different bird species, a striking example of parallel evolution. In their Perspective, Hoekstra and Price discuss the molecular basis for similar dark plumage patterns between two very different arctic bird species (Mundy et al.).

H. E. Hoekstra is in the Division of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA. T. Price is in the Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637, USA. E-mail: hoekstra{at}ucsd.edu, pricet@uchicago.edu

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