Combining Texts

Ideas for 'Parmenides', 'Resurrecting Biological Essentialism' and 'Contributions to Philosophy'

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2 ideas

27. Natural Reality / G. Biology / 5. Species
We name species as small to share properties, but large enough to yield generalisations [Devitt]
     Full Idea: Our explanatory purposes in introducing a name for a species demand that we draw the lines around a group that is small enough to share a whole lot of important properties and large enough to yield broad generalizations.
     From: Michael Devitt (Resurrecting Biological Essentialism [2008], 10 'Arb')
     A reaction: Grist to my mill. In this reaction slot (16th Oct 2013) I launch my new metaphysical school - welcome to EXPLANATIONISM! Folk metaphysics, and the best philosophical metaphysics, is entirely driven by the needs of explanation.
Species are phenetic, biological, niche, or phylogenetic-cladistic [Devitt, by PG]
     Full Idea: The four main concepts of a species are 'phenetic' (similarity of traits), 'biological species' (interbreeding and isolated), 'ecological niche' (occupying an adaptive zone), or 'phylogenetic-cladistic' (start and finish at splits in lineage)
     From: report of Michael Devitt (Resurrecting Biological Essentialism [2008], 4) by PG - Db (ideas)
     A reaction: [my summary of Devitt's list] Devitt attacks the whole lot, in favour of essentialism - the species being fixed by its underlying explanatory mechanisms.