Cute and alien
Who will adopt BigDog?
In a sinister Christmas video, prancing military machines pull a sleigh
Also, meet a robot dog with an arm for a neck
Good luck kicking this dog down
Robots bring lunch to the battlefields of tomorrow.
Our favorite shambling robotic pack mule has come a long way over the years.
After five nail-biting rounds, we have a winner!
Round four polls close Wednesday, March 27, at 9 a.m. Cast your votes in the penultimate matchup!
Playing fetch with BigDog just got a whole lot more fun. And destructive.
Like science, tech, and DIY projects?
Sign up to receive Popular Science's emails and get the highlights.