This has to be the weirdest video I've ever seen. A cat was born with deformed hind legs (oversized). So, while the cat scampers around and plays on all four legs, the cat has learned to walk on just TWO legs.
Check out the video linked to below (Windows Media). The "bi-ped" action starts around the 1 minute 40 second mark:
http://tinyurl.com/qfqy7
Check out the video linked to below (Windows Media). The "bi-ped" action starts around the 1 minute 40 second mark:
http://tinyurl.com/qfqy7