If an asteroid did not hit the earth many tens of millions of years ago, the dinosaurs would not have been killed off, and might still have remained the dominant species today. The mice-like creatures who were alive when dinosaurs ruled the world might not have evolved into humans. These contrasting positions must be debated in the realm of philosophy and theology. It is doubtful that they can ever be resolved by reason or physical evidence . We will not discuss this question extensively on this site.
Debate leads nowhere, and creates massive frustration.
Old species became extinct as others evolved. Only a small percentage of the total number of species that ever lived, existed at the same time. All land animals similarly drowned, except for the 2 or 7 of each species who were lucky enough to get a ride on the ark. The earth's life forms have not evolved. Debate over these issues are in the realm of science.