User blog comment:The Reptile King/Hybrid Dino Creation center/@comment-28358106-20160701234515/@comment-28358106-20160702004130

I completely forgot about the sterility thing, to be honest. I did write it from a natural standpoint, thinking they might be a kind of natural crossbreed (but, as you said, that defeats the exercise, so...bleh.)  I did take into account the flaw, but I guess I didn't emphasize it enough: the Wurm's stupidity and single-mindedness.

I originally wanted to make an RK Mamono because I wanted to see something snakelike that corrected the Wurm's flaws, but again, it missed the point of being a hybrid.

Instead, how about I adapt it into an actual RK Mamono and make the necessary changes?