Ondulation dauphin par Michael Phelps (capture d'une vidéo)
Youtube:MP Michael Phelps
CC BY-SA 3.0
Screenshot from <a href="//commons.wikimedia.org/wiki/File:MP_Michael_Phelps_-_Chronos_Competition_Swim_Goggle_footage.webm" title="File:MP Michael Phelps - Chronos Competition Swim Goggle footage.webm">File:MP_Michael_Phelps_-_Chronos_Competition_Swim_Goggle_footage.webm</a>