Most species exhibit no directional change during their tenure on earth. The dialectical laws are explicitly punctuational. Eldredge and I were fascinated to learn that most Russian paleontologists support a model very similar to our punctuated equilibria. The connection cannot be accidental. I would like to say that God is good first of all.
Evolution is something that is easily understood by youth today.
However, I am an exception to that. And some people just don't even TRY to understand it, yet attack it maliciously. But think of this when agruing this scientific theory. Bacteria didn't create us, modern bacteria is as modern an organism as we are, and the bacteria-like organisms we originated from are extinct by now. Electric storms reacted with the chemicals in the air and sea, and created proteins, etc.