>>12213319Look up "Brain Tails".
You want a simple explanation, fine ... here's what I have been saying for IDK how long.
Mewtwo has 2 necks/ spinal cord because of the energy his brain demands in his mutated fetus like state. A more "prefect" form shouldn't NEED training wheels likes that and his/ her brain would be larger. So that Spinal Cord/ Neck becomes the base for a brain tail that hold more of Mewtwo's massive brain.
Just look at it's overall design ... Mewtwo had it's tail and shit because it was a mutated fetus based on Mew, and a more complete form would let go of the things it doesn't need (a massive tail that does fuck-all and a energy system that's not very functional for it's brain that may well need more room to expand into).
So yeah ... what else should a "second neck/ spinal cord" turn into?
