https://en.m.wikipedia.org/wiki/Human_genetic_variation
SAME YESTERDAY AND TODAY
DNA of plants, animals , and man reflects a 99.5% genetic identity between ancient, medieval, modern clines, dating back millions of years.
https://en.m.wikipedia.org/wiki/Human_genetic_variation
That would suggest that each bears substantial similarities to ancestors. From this one may further deduce that there are very few differences over long periods of time among us.
A "cline," in biology is defined in the above link as a "continuum of species, populations, races, varieties , or forms of organisms that exhibit gradual phenotypic and/or genetic differences over a geographic area, typically as a result of environmental heterogeneity." It is further asserted above that "in the scientific study of human genetic variation, a gene cline can be rigorously defined and subjected to quantitative metrics."
Despite our demonstrated genetic similarities, popular literature and perceptions, proceed from a linear premise of our having "progressed" over our predecessors in many ways.
To that prevailing popular prejudice , I say, "bunk!" The same yesterday as today, is mankind, plants & animals.
SAME YESTERDAY AND TODAY
DNA of plants, animals , and man reflects a 99.5% genetic identity between ancient, medieval, modern clines, dating back millions of years.
https://en.m.wikipedia.org/wiki/Human_genetic_variation
That would suggest that each bears substantial similarities to ancestors. From this one may further deduce that there are very few differences over long periods of time among us.
A "cline," in biology is defined in the above link as a "continuum of species, populations, races, varieties , or forms of organisms that exhibit gradual phenotypic and/or genetic differences over a geographic area, typically as a result of environmental heterogeneity." It is further asserted above that "in the scientific study of human genetic variation, a gene cline can be rigorously defined and subjected to quantitative metrics."
Despite our demonstrated genetic similarities, popular literature and perceptions, proceed from a linear premise of our having "progressed" over our predecessors in many ways.
To that prevailing popular prejudice , I say, "bunk!" The same yesterday as today, is mankind, plants & animals.