Penguin waddling is not wasteful.
Griffin
T M
TM
Integrative Biology Department, University of California, Berkeley 94720-3140, USA. tmgriff@uclink4.berkeley.edu
Kram
R
R
D000818:Animals; D001696:Biomechanical Phenomena; D001717:Birds / Q000378:metabolism / Q000502:physiology*; D004734:Energy Metabolism; D005684:Gait; D016138:Walking