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Evolution could be like iterative process of fractals with the most complex of complexity. Each new generation could be like new wave of iterates interacting with suroundings and species, thus the formula. Then the iterated produce new iterates who goes throught the same but slightly different formula influenced alsou by positions of previous iterates. These iterations would be mostly convergent with just fluctuations at the local level and not mutch changeing the larger picture in all the dimensions exept small gradual drift in one or another direction. But then from time to time these local fluctuations diverge and eventualy create a new strange atractors.
This is just my madness from watching movies about science;)

Well, there are many animals and plants which are fractal in some way. Ferns, trees in general, also body parts like lungs or feathers. Of course this is involved in evolution somehow...

I think its the same with musical evolution..genres etc..it seem to follow a fractal structure and is much the same principle as animal evolution. 

Well, both applies, I'd say. Of course, species may split, but how often did it happen that two species merge into one? The tree is the natural shape for evolution.