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Science 28 November 2003:
Vol. 302. no. 5650, pp. 1511 - 1512
DOI: 10.1126/science.1092367
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Perspectives

PHYSIOLOGY:
Fish 'n Flag

Ulrike K. Müller

Much interest has been directed toward understanding the biomechanics of swimming and flight, which require a large expenditure of energy. In her Perspective, Müller explores intriguing new findings (Liao et al.) that reveal how fish are able to reduce muscle activity during swimming by exploiting the vortices generated as water flows around stationary objects.

The author is at the Experimental Zoology Department, Wageningen University, Netherlands. E-mail: ukmuller{at}yahoo.co.uk

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