So it looks like this is something that simply cannot happen because there is an intrinsic constraint on that process. Now there is plenty of evidence that that kind of constraint exists through the whole of biology. In other words, the reason why species are distinct is because you have only got certain types of forms, that can actually be generated by the developmental process. That really begins to shift the emphasis with respect to how we understand the different species and how they are related to each other. In order to get a really firm grip on this, we actually need a theory of the whole organism and its transformation.
Organisms are organized wholes.
That's why they have these constraints. The sort of theory that you need to understand morphogenesis involves understanding the components which organisms are made. You certainly need to know a lot about molecules, but you have to understand how they are put together and what sort of dynamics is involved. Now this is where these new sciences that are called the sciences of complexity come into the picture, where you actually look at the dynamics of complex systems, and see how emergent order arises, in often very unexpected ways. This happens because of what we call the relational order, the relationship between the components.