Why not have a full android?

Check out the following video of BigDog.  It is powered by a gasoline engine that drives a hydraulic
actuation system. Speed is 3.3 mph and it can carry a 120 lb:

www.youtube.com/watch?v=PEG9pRY9s8M

The company which makes these human-like robots is:
http://www.bostondynamics.com/

Can you see how realistic the legs move?  If they built up the legs to look more like human legs, it would
look even more realistic.  They could cover the center section over and paint the torsos on the side and
fool most human viewers.

Inventbot

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Inventbot, inventing new creatures