My, oh my, please give the answer as to how the "life we see" got to the state that it is today. By the way, speciation does not prove evolution. Here's a question: do you have a problem with my wording (not the idea necessarily) that speciation does not prove evolution?
You ask how did the life we see get to the state that it is today. Let me put it this way. At a certain point, and I keep it simple, and you may ask and add, breath was given to animals and humans. I HATE to go back into science, but I will for a while if you like. Not that I hate science, but my inclination is more of a musician. I like cooking sometimes, I like trying different spices and herbs, there are so many of them that we hardly know about yet, in various cultures of wonderful tastes. All right, so here is where I keep it somewhat simple. BREATH as we know it in animal and human organisms, was given to animals and humans. Breath. Talk about breath for a while, an interesting subject.