The EcoBot II eats flies and digests them for power

We know what you’re thinking. A robot that totes around human sewage, digesting living beings for energy? What, you’re not inexorably excited about this? The EcoBot II (ah, what a benign, nonthreatening name) is fed flies into 12 sewage-based bacterial fuel cells, which break them down, digest them, and use the electrons released as current. Via Engadget