I've posted this relatively high resolution version of Kinesin Walking that i created for NOVA for instructors who plan to provide their own narration (educational non-profit purposes only). To learn about this fascinating molecular machine kinesin, please see the narrated version I created for Garland publishers with Peter Walter at http://youtu.be/YAva4g3Pk6k or www.grahamj.com For details on the science behind the animated visualization, please check out the original paper: Vale, R. D. & Milligan, R. A. The Way Things Move: Looking Under the Hood of Molecular Motor Proteins Science, 2000, 288, 88-95