Here is a video of an experimental Volvo breaking itself

http://www.youtube.com/watch?v=y9c3V0q8cgk

Here is a four legged robot walking around and maintaining balance
http://www.youtube.com/watch?v=kJQ4-cv4rhI


Small robot dog with WiFi antennae:
http://www.youtube.com/watch?v=YBSK7LYpg9w&feature=related