Kinetic Sculpture

The guy in the video above is named Theo Jansen and he works in Holland. Uses the crank shaft model to translate pedal movement into the circular motion of a wheel, thus maintaining his "animals" level with the ground on impact. All of his "animals" are powered by wind and nothing more. Even though he is an artist rather than an engineer, he and others have recognized the potential applications of his sculptures in the robotic field.

Here is his official website where you can watch several more videos and see a lot of pictures of his sculptures. www.StrandBeest.com
For a few more videos check out the links below.