Meet WildCat, the latest robotic creation from the species-betrayers at Boston Dynamics. WildCat can run 16 mph on flat surfaces, and although it hasn't yet acquired a taste for human blood, that will surely change in the near future.
Seriously though, fuck this thing. You may look at it and see a triumph of engineering, but I see a potential killing machine that is just begging to have an M60 strapped to its back and a "search and destroy" directive uploaded into its CPU.