EastEnder
Brixton Barnacle
I wouldn't bother. The nature of the OP leads me to suspect the question was not asked by someone who's interested in rational arguments.Gene mutation is almost random (not quite: there are rules), but the adaptations which may result from those are selected for by environment (and sex). Natural selection favours those mutations best suited to the immediate environment. Giraffes didn't evolve long necks entirely by chance, but because those individuals with longer necks turned out to be better at surviving and passing on their genes.