Yes, I think we’re an invention of the Japanese. Otherwise, maybe Charles Darwin was right and we have evolved from the swamp through a complex but understandable series of accidents.
Anything’s possible ! but it would be a total shock to the system to the human race as most people believe humans are the only beings in the entire universe and top of the food chain.
@azlotto there are ancient texts and ruins that suggest this may be so. However nothing can be proven, so until a supreme being shows up (2012?) and says “Well, let’s see how they turned out…” we will never know.