The robot on display in the video is BigDog, a DARPA-funded all-terrain cyber-canine meant for military use. It can tackle slopes up to 35 degrees, rubble, snow, mud, and water, and can carry a 340-pound load. Boston Dynamics writes of the monster dog's latest trick:
BigDog handles heavy objects. The goal is to use the strength of the legs and torso to help power motions of the arm. This sort of dynamic, whole-body approach is routinely used by human athletes and animals, and will enhance the performance of advanced robots. The control techniques and actuators needed for dynamic manipulation are being developed by Boston Dynamics with funding from the Army Research Laboratory's RCTA program.