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Science 11 February 1977:
Vol. 195. no. 4278, pp. 592 - 594
DOI: 10.1126/science.835018
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Articles

Science, Vol 195, Issue 4278, 592-594
Copyright © 1977 by American Association for the Advancement of Science

articles

Terrestrial locomotion in penguins: it costs more to waddle

B Pinshow, MA Fedak, and K Schmidt-Nielsen

The energetic cost for walking is relatively higher for penguins than for other birds or for quadrupeds of similar body mass. The morphology of penguins seems to represent a compromise between aquatic and terrestrial locomotion wherein both energy economy and speed suffer when the birds move on land.


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