Actually, the uphill-draining sinuses, the appendix, the lower back, etc give me the impression that it's the work of Microsoft.
We'll have 150 pounds of dirt delivered to your doorstep by 5:00 PM. You have the weekend to fashion it into a better, living, breathing, procreating model.
On second thought, why should you have a head start? Create your own space-time and dirt. ;-)