There are three methods of acquiring knowledge known to man. Philosophy is argument for proof of the unknown(faith and belief). Science is observation of facts, and the evidence and explanation of the fact. Mathematics determines absolutes. Changes occur (evolution is a fact) is of science. Theology (faith and belief) is of philosophy. Philosophy has provided little or no new knowledge in a thousand years. All new knowledge since the middle ages has been of math and science. Opinion is void of both knowledge and fact. It is despised by philosophy, science and mathematics.
What are the facts? Again and again and again - what are the facts? Shun wishful thinking, ignore divine revelation, forget what 'the stars foretell,' avoid opinion, care not what the neighbors think, never mind the unguessable 'verdict of history' - what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your only clue. Get the facts!Robert A. Heinlein, Time Enough for Love, 1973
No, changes do not occur. That is not science, but myth. Every species that exists today has existed since creation, and there is no evidence to the contrary, only intense desire and belief in anything that would negate God's plan.