Ratchet shook his head. None of the things Carter was listing were very apparent from a few mechanometers above their heads. "On the other servo," he said, "you're all about the same size, you have the same body shape, you're all some shade of brown, you all have the same number of eyes and limbs and digits. There are a few humans I know well enough to pick out of a crowd, but for the most part you really do all look alike, and these Germans of yours are idiots for splitting wires like that."

Prime, apparently, knew how organics replicated themselves, but had refused to speak of the matter except to say that they weren't built in the normal way. He'd seemed upset, and Ratchet had to wonder what sort of arcane practices the humans got up to that would rattle Optimus like that. One thing Ratchet did know was that there were some things a bot was happier not knowing, and this may have been one of them. "I guess its harder than just installing the proper parts after they're built, so I'll just take your word for it."