If they mean only that evolution of a sort has been known to occur, and that natural selection has observable effects upon the distribution of characteristics in a population, then there really is nothing to dispute. (firstthings.com)
At the same time, Bratton has led an evolution of sorts (gothamgazette.com)
This technological breakthrough has long been seen as evidence for the evolution of the sort of brain that is capable of planning and abstract thought. (newscientist.com)