If the sight of Boston Dynamics' unstoppable Alpha Dog didn't convince you of the coming robot apocalypse, then perhaps a glimpse of its bipedal relative, PETMAN, will. Last time we saw the two-legged bot, It was walking well enough, but it lacked the humanoid visage needed to infiltrate and overthrow. In the time since, however, PETMAN has gotten a more anatomically-correct body and some arms -- giving it some push-up prowess to go with its jaunty gait. As the video below demonstrates, this robot isn't a T1000 just yet, but is seems certain PETMAN and its progeny will be running and leaping over us meatbags on the way to the top of the evolutionary food chain soon enough. So our anthropomorphic replacements are on the way, but there's no need for full-blown panic... yet.