http://www.bostondynamics.com/content/sec.php?section=BigDog
spider robot parody
http://video.google.com/videoplay?docid=-1398790810919088991&q=bigdog+parody&ei=bquXSLnXJYGK2AKx8cnGBQ
spider robot natural evolutionary step soon to come (I for one welcome...)
http://www.youtube.com/watch?v=JhpS69eAXrU&feature=related