United States Marines and representatives from Boston Dynamics look at Spot, a four-legged robot designed for indoor and outdoor operation, during the Defense Advanced Research Projects Agency Robotics Challenge at the Fairplex June 5, 2015 in Pomona, California. Organized by DARPA, the Pentagon's science research group, 24 teams from around the world are competing for $3.5 million in prize money that will be awarded to the humanoid robots that best respond to natural and man-made disasters.
