(Article by Stanley H. Ambrose) Paleolithic technology and human evolution.

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Paleolithic technology and human evolution
Around 3,000 years ago, something that was different from the previous trends took place, and it would result in ever-expanding outcomes. This attracted the attention of scientists like Kubrick Ambrose who are associated with the beginning of the modern human evolution through their studies on the Paleolithic discovery of technology. Stanley Ambrose, working as a Paleo-anthropologist at the University of Illinois, wrote an article that gives evidence of tool-making and the evolution of brains and hands. In his review, he presents an explanation of what took place between the period of an ape ancestor with a bone and that of an ape descendant who worked on the international space station.
The first evidence given of technology among the genus Homo was in 2.5 million years ago, which took place in the Ethiopian Rift Valley (Ambrose 1748). The early hominids during that time used lumps and slivers of stone; the existence of bones that had hammer marks give evidence of the use of tools for marrow extraction and butchery purposes. Despite the tools used being simple, they required one to possess greater manual skills than that possessed by modern chimps.
The arms of chimps mainly move from the shoulder, and have an immobile wrist. Their writs lock, and this is what facilitates knuckle-walking. On the other hand, hominids walk upright and could thus develop a mobile wrist. They used the wrist in making stone tools, manipulating small tools, and throwing fastballs.
Meat-eating was one of the major driving forces for the use of tools, but the existence of micro-wear polishes on stone flakes suggest that tools were also used for scraping and cutting wood, sedges and reeds, and cutting meat. Such early technology paved the way for high-quality food resources, which fueled the energy demands of the Homo since she had a large brain (Ambrose 1750). Notably, female chimps have a greater skills and persistence in regard to using tool...