One Of The Definitions
“A species is a group whose members can interbreed and produce viable, fertile offspring.” (1)Some Of Darwin's View
“Through much of [ the European suboptimal view of] biological history there has been controversy regarding the existence of species in nature. Are species real units in nature? Can the species category be defined objectively? Darwin's work contributed to the recognition of species as real entities. The very title of his book, On the Origin of Species, stressed this category. But as Mayr has pointed out, Darwin himself was so impressed by the variability and intergradation in the material he studied that he considered the term "species" to be arbitrary, not differing in essential features from "variety." (2) The crux of the confusion surrounding defining what species means could really come down to two things:1. An ulterior motive regarding human classification which needs no explanation.
2. A fundamental lack of understanding biology which needs re-Africanization back to teachings upon which the sciences are based.
(1) Paraphrased from“CH 24, Origin of Species & Speciation, Biological Species Concept,” p. 1. bio.classes.ucsc.edu/bio175/Lectures/21_Species_Concepts.pdf
(2) Sokal, Robert R.; Crovello, Theodore J., “The American Naturalist,” Vol. 104, No. 936. (Mar. - Apr., 1970), p. 127. http://mechanism.ucsd.edu/teaching/philbio/readings/sokal.biologicalspeciesconceptcritique.1970.pdf
The fact that there is only one human genetic database (genome) tells us there is only one group of humans genetically-speaking. That one group of humans we all belong to has 99.99% genetic alikeness and only 0.01% variation.
