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.
A review of major ideas pertaining to the importance of the body size of animals. It discusses the size range of living organisms and the possibilities and constraints that result from the design of animals and the materials used in their supporting structures. The change in size of similarly organized animals is considered in the light of the principles of… (More)
News in Physiological Sciences (ISSN 0886-1714) is published bimonthly (one volume per year] by the International Union of Physiological Sciences and the American Physiological Society. America. The code at the bottom of the first page of an article indicates the copyright owner's consent that copies of that article may be made beyond that permitted by… (More)