An all terrain robotic dog powered by a gasoline engine!

Looks a bit spooky and funny.. nevertheless its excellent engineering

http://www.youtube.com/watch?v=mBCVprX0WnY&feature=related

Probably the coolest robot I have seen so far 

Don't take this Robo as armature project:

1. Begin developed by Boston Dynamics
2. funded US defense
3. Made to aid soldiers to carry their lods : Rucksacks, Arms etc.
4. Has extreme agility and neuro-gyro, using  which it can climb the toughest tarrain and can react/recover like a dog/Calf when kicked by humans hard.
5. It can leap/jump like a Deer!

http://www.youtube.com/watch?v=W1czBcnX1Ww&feature=player_embedded

look at related videos on how it was prototyped. There is a small version of this as well, Baap of Aibo!