Humanity had determined through frequent research over the past several decades, as well as by studying the Deep Blue Star People's own research materials, that the physiological traits of offspring born after their union did not resemble either the father or the mother.
Instead, they existed in a non-concave, non-convex state where no trait was expressed.
Or rather, they had no sexual traits at all, only excretory organs, until they reached adulthood.
After reaching adulthood, Deep Blue Star People underwent a second cellular differentiation over several days. During that period, cellular activity around their excretory passages surged, and they secreted a certain liquid, including across their skin.
Then, over the course of several days, that region developed into either a concave or convex structure, the two fitting together through a Mortise and Tenon Structure.
Remarkably, the chances of becoming either a mortise or tenon structure were equal, both at fifty percent. Before adulthood, no one knew which structure they would ultimately develop.
That was because this change was not determined by recessive genes at all, but by a probabilistic genetic mutation.
It was truly extraordinary. After reaching adulthood, a certain segment of a Deep Blue Star Person's genes inevitably mutated, and there were only two possible outcomes, each with a fifty-percent chance. This mutation determined what kind of structure the adult Deep Blue Star Person would have.
During those several days of transformation, the liquid secreted from their bodies formed something like a silkworm cocoon around them. Once the transformation was complete, everything from their faces and skin to their sexual traits changed.
Either concave or convex, either refined or rough.
The universe truly contained every strange wonder imaginable.
When humanity had first studied them, if not for the Kuntai People having come before them, they might not have dared