Do you seriously believe that every creature on Earth today was created as it is by God millions of years ago? Evolution is just the survival of organisms that have favorable expressed genes. Slowly organisms with unfavorable genes decrease due to low levels of reproduction and those with favorable genes (naturally available or from mutation) reproduce more often leading to what we know as evolution. How does this go against creationism? It makes a lot more sense that God created the necessary base components required for life and let evolution take place. If this wasn't the case then why did God create dinosaurs? No humans were around until the very end of their reign.