Human Evolution

The tools used for bio-evolution are also used for the study of human evolution.  Determining the origin, timing, and sequencing of DNA sequences, along with the study of fossils, are key tools in the study of human evolution.  There are many variations in human color and shape on earth.  These variations are so great that for a long time people have been talking about the 'species' of human beings.  Skin color in general was an easy way to identify the species.  Some species were known as black, yellow, white or brown.  The question then becomes whether the seemingly identical species evolved differently.  Over time, the evidence became clearer and the answer was that there is no biological basis for such a species, all of which are humans.  Not necessarily where we have lived for thousands of years, but all of us have our origins in Africa.

The first members of mankind's Homo sapiens sapiens were discovered there.  Our genetic traces can be traced back to African descent over time.  Some thousands of years ago our ancestors left Africa while some remained there.  However, the natives spread throughout Africa.  This undeveloped migratory species gradually spread throughout the planet.  From Africa to West Asia and from there to Central Asia, Eurasia, South Asia and East Asia, from there they traveled to the islands of Indonesia and from the Philippines to Australia.  They reached America by crossing the Bering Land Bridge.  Because they were not traveling for the sole purpose of traveling.  They did not go the same way but went forward sometimes and sometimes backward in different groups.  Sometimes they separated and moved in different directions while some came back and even merged with each other.  This chronology of comings and goings was going on.  Like the other species on the planet, their origin was just a bio-evolutionary phenomenon and they were trying to live their lives to the best of their ability.