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The Various Lines Of Evidence, By David Robson

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The Various Lines Of Evidence, By David Robson
The Various Lines of Evidence From the discussion of the author, David Robson, it could be deduced that there are at least two lines of evidence that I found the most significant. First of all, among the evidences presented, the stone tools were the principal evidence aside from the fossils of the early humans for the said items could be considered as expository artifacts of our ancestors’ development into becoming humans. Not only do they show how the first organisms lived, but they also tell something about the cognitive development as well as the development of skills that separates them from apes and early organisms. Another line of evidence are the fossils of our ancestors. Certain parts of our ancestors’ body, particularly those that …show more content…
For the former, our ancestors eventually developed the skills in utilizing language and speech, including an understanding that is deeply rooted from organization of ideas as well as self-control. Given the fact that these abilities are dependent on many thought processes, it could not be ignored that the early humans truly reached a milestone in human cognition. In addition, the early humans have also reached a milestone with regard to establishing sign-post sites of significance that could be attributed to their cognitive development. The early inhabitants have also been observed to be constantly revisiting certain places. It is also of equal importance to discuss the way our ancestors have slept in the past could also be considered as a milestone. The early humans have finally realized that it would be better to sleep on the ground rather than sleeping on the branches of trees which takes up more time and effort. This milestone paved way in the improvement of our ancestors’ quality of sleep as they spend longer hours for rapid-eye-movement sleep and slow wave sleep. In effect, there has been an improvement in the aspects that cater to the consolidation of memories, associative thinking, as well as …show more content…
According to Robson, Stout (Bradley’s collaborator), states that the sequential thinking needed to create the leaf-shaped hand axes is similar to the thinking that allows us to understand and construct sentences. In addition, the development of motor control skills have also aided in the articulate vocalization of our ancestors which require precise movement of the lips and the tongue. As stated in the text, the development of motor control skills can also be co-opted for speech. Another key point is Stout’s experiment where his prediction comes true. The experiment tests the theory that correlates the motor control skills with the creation of tools. His studies show that people who made replicas of the Oldowan tools have the greatest activities that are associated with the motor control needed to speak. Likewise, he also tested the development of the late Acheulean tools which shows an overlap with various processes that involve linguistic

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