whatever writes:
...the very fact creatures only produce new species within kind...
For this to be a fact, you would first have to know for certain what a "kind" is. Please define "kind" for us in such a way that if we were to take a hypothetical organism X we could determine it's "kind" by observing the differentiating charcteristics described in that definition.
Without that, I submit that your "fact" is mere fantasy.