SHEKINAH writes:
If an animal mates with another animal not of its exact species, the result will be a sterile creature (e.g. a horse mating with a donkey produces a sterile mule). If animals of a given species mate and produce an abnormal offspring (i.e. a mutant), it also is sterile. Therefore, how could the macro evolutionary process advance? How could a "mutant" (i.e. advances in form) reproduce? It would first have to be fertile itself. It would have to find a sexually compatible mate who was also fertile during its relatively miniscule life span on the overall evolutionary time scale. Thirdly, their offspring would also have to be fertile and be able to continue the advance. So if single celled animals formed in the primordial soup and they were asexual (not have either male or female characteristics, but reproducing by themselves, how would they advance to a hermaphroditic state (having both male and female sexual organs) and then to the higher orders of animals which almost always have distinct male and female reproductive organs? All in-between states are sterile.
I'll explain this in a non-biological way with the hope that you will honestly try to understand what evolution really is.
Imagine yourself living in Los Angeles, CA. One day you decide to walk eastward. If you keep walking and walking, step by step, eventually you will reach Las Vegas. If you keep walking in the east direction, you will eventually reach Chicago. If you're persistent enough, you will reach New York. You then realizes that it just took you 2 years to walk from California to New York. Note: Look up thefatmanwalking on google search.
Of course it is ridiculous to say that you took a step from Los Angeles to Los Vegas. It is also equally ridiculous to say that you took one single step from Las Vegas to Chicago and another step to go from Chicago to New York. There are many steps in between and it took you a long long time.
Among biologists, there is no difference between macro and micro evolution as far as the mechanics go. Micro evolution happens. This is a fact. There is no dispute about this. We observe it everyday. Macro evolution when you add up all the micro evolution that happened over long periods of time.
Looking back at the walking example, you can have two different terms to describe the same thing. We can say that you taking a step is called micro stepping. Adding up all your micro steppings and you end up with macro steppings, from Los Angeles to Las Vegas, from Las Vegas to Chicago, and from Chicago to New York. Again, it requires many steps in between to get from one such location to another.
And just like walking, macro evolution requires many many many many mutations and micro evolutions.
I used walking to demonstrate to you how evolution works because walking is the simplest parallel I can think of. Now that hopefully you've understood the basics of it, let me point to you a more direct parallel.
The evolution of language is a direct parallel to the evolution of life. All modern day romance languages originated from one single language: ancient Latin. The famous romance language you might recognize are French, Spanish, and Italian. At this point, you might ask yourself how these languages could be related. And it's even harder to imagine that at one point in time all these languages were one language. Small "mutations" of words and phrases over very long periods of time eventually isolated certain groups from each other. They once all spoke ancient Latin and now they speak many languages.
The changes that occur in the evolution of language are so small that isolation between populations happens very gradually. An Australian and an American, while having different accents and different phrases for certain expressions, if isolated from each other for thousands of years, will likely result in different languages all together, just like how ancient Latin resulted in all the romance languages we have today.
So, to sum it up, your questions make no sense at all because that's simply not how evolution works. What you call macro evolution is simply the accumulation of very minute changes in biological life over vast amounts of time (eons). Whole populations evolve, not individuals. In fact, if you had taken high school biology you would know that that's the first thing they teach you. The smallest unit that could evolve is a population. Individuals can't evolve.
Hope that helps.
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