Thus, summarily and briefly let me continue by saying that the increase in size and volume of the human-brain organ a.k.a. psychic-apparatus, i.e. its encephalization underpinned the evolution of humanity’s technological-adaptations including inventions, sophistications, developments, advances and elaborations of the same interpreted as a measure of human-intelligence; and at the same time also underpinned his moral-sensibilities including the pre-adaptation of speech, i.e. language and literacy following on rudimentary speech;
………all these occurring as a response to increased necessity for cognition, i.e. the set of all mental-processes / faculties / capacities a.k.a intelligence or creative synthesis which’s characterized by perception or comprehension all encapsulated in the mind which in turn facilitates the efficient operations of these mental-capacities and moral-sensibilities encompassed with the power and capacity to solve important problems of survival-and-reproduction across space and time.
This cognition jus’ like other organs and the immune-system is composed of a functional-structure which in turn also happens to be underpinned on a genetic basis meaning in essence that its development evolved by natural-selection and was thus provided-for or acquired by gradation in descent as one ancestral-hominid-fossil-species descended into the next generation even as human-society became more and more civilized, advanced and complex!
All these are captured in the hominid-fossil-biochemical record-evidence conjunctively with the archaeological material-culture record-evidence which outline the dual-inheritance-theory holding that genetic / biological and cultural evolution interacted in the evolutionary history of humanity; and that genes got an impact on cultural evolution via psychological predispositions on cultural learning which historically occurred through migrations as a result of war. That much said the hominid-dentition fossil-record-evidence indicates a long term trend towards smaller-molars as well as skull-expansion / encephalization [ and an overall decrease of robustness in morphology ] indicated / whereby the brains of early-bipedal-ancestral-hominid-fossil-species members of the Genus Homo including Homo habilis who evolved ca. 2.3 million years ago ………………later, logistics. NB:This post was first published on Wednesday, September 13 2017 at:
