This artist's concept shows Surrogate, a robot that could one day assist in disasters or hazardous situations such as a dangerous chemical laboratory.
Surrogate was designed and built at the Jet Propulsion Laboratory in Pasadena, California. Its components came from RoboSimian, another JPL-built robot designed for disaster relief and mitigation (see PIA19313). Surrogate rolls on a track rather than moving on its limbs.
http://photojournal.jpl.nasa.gov/catalog/PIA19314