Stroke frequency, but not swimming speed, is related to body size in free-ranging seabirds, pinnipeds and cetaceans
Katsufumi Sato, Y. Watanuki, A. Takahashi, P. Miller, Hideji Tanaka, R. Kawabe, P. Ponganis, Y. Handrich, T. Akamatsu, Y. Watanabe, Y. Mitani, D. Costa, C. Bost, K. Aoki, M. Amano, P. Trathan, A. Shapiro, Y. Naito
Proceedings of the Royal Society B: Biological Sciences