Evolutionary essentialism

Abstract
According to Aristotelian essentialism, the nature of an organism is constituted of a particular goal-directed disposition to produce an organism typical of its kind. This paper argues—against the prevailing orthodoxy—that essentialism of this sort is indispensable to evolutionary biology. The most powerful anti-essentialist arguments purport to show that the natures of organisms play no explanatory role in modern synthesis biology. I argue that recent evolutionary developmental biology provides compelling evidence to the contrary. Developmental biology shows that one must appeal to the capacities of organisms to explain what makes adaptive evolution adaptive. Moreover, the specific capacities in question are precisely those that, according to Aristotle, constitute the nature of an organism. Essentialism 1.1 Aristotelian biological kinds Evolutionary anti-essentialism 2.1 Taxonomic anti-essentialism 2.2 Explanatory anti-essentialism Adaptation 3.1 Stability 3.2 Mutability 3.3 Phenotypic plasticity and adaptive evolution The natures of organisms Conclusion.
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Citations of this work BETA
Travis Dumsday (2010). Natural Kinds and the Problem of Complex Essences. Australasian Journal of Philosophy 88 (4):619-634.
Jonathan Birch (2012). The Negative View of Natural Selection. Studies in History and Philosophy of Science Part C 43 (2):569-573.
Edouard Machery (2008). A Plea for Human Nature. Philosophical Psychology 21 (3):321 – 329.
Richard Samuels (2012). Science and Human Nature. Royal Institute of Philosophy Supplement 70:1-28.

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