First, this isn't in the AskGreg category because it doesn't really affect the story that much. I just had an idea that I wanted to bounce off the fandom.
We know that Baterra are prototype Bohrok. We also know that the Bohrok are made from dead Av-matoran. Perhaps that was a strategy first tested in the Baterra, and the Baterra (all ~50 of them) are made from dead Agori. Think about it, it's the height of the core war. Glatorian and Agori are dying side by side. There's a lot of dead people to use for parts. Kind of morbid, but the Bohrok got that little bit of origin from somewhere, right?
What do you guys think? Baterra made from dead Agori, or are they just normal robots?
Bonus: HF robots are prototype Baterra /s