Biology – Quantitative Biology – Populations and Evolution
Scientific paper
2008-12-10
Biology
Quantitative Biology
Populations and Evolution
16 pages
Scientific paper
We propose, in this paper, both a presentation and a discussion of Paul Alsberg's thesis on the supposed specificity principle of human evolution. The author maintains a difference of nature between Man and Animal relying on an opposition between "body-adaptation" - that of the Animal - and "extrabodily-adaptation" - that of Man in which the means of adaptation are switched outside of the organisms by tool-using. This difference is not a mere difference of state, but of evolutionary dynamics. Here, Man is not simply "Homo faber", as in Bergson's view, but produced and made possible by technique; a technique which then appears as an hominisation factor. Thus, his "principle of body-liberation" by tool-using is to be retrospectively understood as a part of the logics of the modification of selection pressure logics, which reminds us the seminal contemporary niche construction theory (F. John Odling-Smee). It seems therefore possible to make Paul Alsberg, from his 1922 work, one of the most important precursors of the cultural niche construction theory.
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