Human Genetic Evolution

Human Genetic Evolution seems to be like a giant Rubix Cube...with anthropologists throughout history and the world over attempting to add the latest find and piece of DNA data to solve the puzzle. However, the contradictory evidence and theories prove only one thing: we don't really know our how our deep ancestry developed, interacted and inter-related the world over. There are as many opinions as there are different types of data available...be it the "Replacement Model" arguments, based on fossil records and DNA evidence or the "Regional Continuity Model" based on fossil evidence alone.

Truthfully, we have lot of clues about how life evoloved on this planet, but the jury is still out about how our solar system came into existence...or how life first developed on this planet, let alone evolved. It's interesting that we like to pretend that we know for certain how things developed on the planet and within our species, and we teach it to our kids in school as if it were fact -but- the truth is it's just a series of conflicting hypothesis!

On the other hand, it's interesting that NASA has astrobiologists working for them, and are actually considering that life on earth may have been delivered via meteor from the building blocks of outer space; but, then again, maybe they are just trying to guarantee their funding and existence in the future.

I must admit that, as a species, we certainly have been fascinated with the age old question. "where did we come from"? And to that end have been busy studying and classifying all kinds of information about life forms on earth, from the effects of natural selection on the Peppered Moths (I think it's amazing that during the Industrial Revolution the black mutation of the Peppered Moth concentrated in the soot-filled cities, while the naturally speckled moths lived in the country where lichen still flourished!) to the organization and categorization of the various species of life on earth...one thing is for certain, humans have been busy trying to solve this age old riddle. However, the definitive answer still eludes us.