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  1. Protolanguage Might Have Evolved Before Ostensive Communication.Ronald J. Planer - 2017 - Biological Theory 12 (2):72-84.
    According to one currently influential line of thinking, the evolution of ostensive communication was a prerequisite for the evolution of human language. In this article, I distinguish between a strong and a weak version of this view and offer a sustained argument against the former. More specifically, the strong version of this view would have it that ostensive communication was a prerequisite not just for the evolution of fully modern language but for any language-like system of communication. I argue that (...)
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  • Units and levels of selection.Elisabeth Lloyd - 2008 - Stanford Encyclopedia of Philosophy.
    The theory of evolution by natural selection is, perhaps, the crowning intellectual achievement of the biological sciences. There is, however, considerable debate about which entity or entities are selected and what it is that fits them for that role. This article aims to clarify what is at issue in these debates by identifying four distinct, though often confused, concerns and then identifying how the debates on what constitute the units of selection depend to a significant degree on which of these (...)
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