Motorcycles and Bikes are only ever created by humans. We know how they are created. So we can know how they "evolve" which was through developed improvements of engineering. Similarly we know how life is created. So the process of improvement and change for animals would be through this process. That is called evolution. If you leave a Bicycle with a trike in the same room it will never mate and make little bicycles that are similar to itself. But life does this. If the process of reproduction is drastically different then it only follows that the mechanics of the evolution involved are just as drastically different. There is no comparison to be made.
The difference is that we know bikes and motorcycles are designed from without.
We know physical life
can be designed from without -because we do it.
We also know physical life designs itself from within partially in response to what is without.
Evidence that internal changes were made to physical life forms from without would be very difficult to find -especially after much time.
We can design systems which change from within partially in response to what is without. We can program those systems to also make specific predetermined changes over time.
If we clone a pair of animals -or perhaps designed a new species and placed a pair in the forest to reproduce, what sort of evidence would be found by someone unaware?
We do not know whether evolution itself was designed -because the process could have been designed and set in motion even before the Big Bang -some time afterward by manipulation of natural processes -some combination of such things, etc.
Also, God is said to act by fiat -manipulating physical things by directly interfacing -by will alone.
How could one find evidence of one who could tweak DNA just by thinking about it?
Anyway -I've been wondering recently whether we are able to program DNA to make specific changes in a certain number of generations -or other such things -designing species from within only to be evident later (which would also adapt to their environment) -potentially designing the emergence of many species over time.
Also.... Whether the elements are the true machine code for life -or whether code can exist within the elements. We may assume each atom of a certain element is exactly the same -but are we sure?
Furthermore.... We believe it possible that radiation drives evolutionary mutation.
Radiation is associated with communication.
Is it possible for us to steer evolution from afar?