Animal – Locomotion – Photo – Insect, Snake, Eel
Marey, Etienne-Jules. – Comparative locomotion of differents animals [translated from La Nature, September 2, 1893, p. 215-218]. In : Annual report of the Board of Regents of the Smithsonian Institution (?) to July, 1893, 1894,p. 501-504. Scan of 2 d image in the public domain believed to be free to use without restriction in the US.
