Google acquires military robot-maker Boston Dynamics
16 December 2013 Last updated at 14:07 GMT
Google has bought the engineering company that developed the world's fastest-running robot and other animalistic mobile research machines.
Boston Dynamics, which builds robots for the US military, is the eighth robotics firm acquired by Google this year.
Robotics expert Noel Sharkey said the move was "a big surprise" but could push the industry forward.