We have actually seen, with our own eyes, the emergence of new biological species from pre-existing species. If I were you, Edgar, I'd do some research before posting here. Nobody has ever actually SEEN an electron. Interrelated Species is a direct explanation of two species that are similar in many different aspects. You haven't answered Mesk's question.
Evolution explains WHY apes and humans look similar.
It gives a specific mechanism- inheritance of common traits from a common ancestor.