What is the evidence for fixed species?
A biological species is able to reproduce fertile off spring. It is this species term alone that proves ALL species is fixed because inter species breeding does not produce fertile off-spring. This concludes that biological species are fixed.
The off-spring would be a variation of the parents. This is called a constant variable within a bioogical reproductive species.<quoted text>
Are you saying that offspring will have exactly the same DNA as its parents?