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| Animalism | |
|---|---|
| Name | Animalism |
| Field | Philosophy |
| Notable | John Locke, Eric T. Olson, Derek Parfit, Thomas Nagel, David Wiggins |
| Region | Anglo-American philosophy, Continental philosophy |
| Era | 20th century, 21st century |
Animalism
Animalism is a position in metaphysics and the philosophy of personal identity that asserts human persons are fundamentally biological organisms. It contrasts with psychological and soul-based theories by grounding personal identity in organismic persistence rather than in John Locke’s memory continuity, René Descartes’s dualism, or Derek Parfit’s psychological relations. Proponents characterize identity conditions in terms of biological criteria familiar from Charles Darwin’s evolutionary framework and contemporary philosophy of biology.
Animalism holds that human beings are the same kind of entity as other animals—specifically, living human organisms—and that personal identity over time tracks the persistence of that organism. It addresses questions raised by Heraclitus-style change, the Ship of Theseus paradox, and debates influenced by David Hume and Gottfried Wilhelm Leibniz about individuation. The scope includes metaphysical commitments about persistence, biological individuation, and implications for topics treated in metaphysics, bioethics, and philosophy of mind.
Roots trace to early naturalists and biological thinkers such as Aristotle’s account of soul and body, through modern shifts by John Locke and Thomas Hobbes to identity questions in the modern period. In the 20th century, thinkers like Gilbert Ryle and W.V.O. Quine influenced naturalized approaches, while critics from phenomenology and existentialism prompted refinement. The contemporary revival owes much to Eric T. Olson and exchanges with Derek Parfit; Olson defended organism-based identity against psychological reductionism, whereas Parfit emphasized psychological continuity in works responding to debates sparked by Sydney Shoemaker and Harry Frankfurt. Influential venues include debates at Princeton University, Oxford University, and conferences associated with the American Philosophical Association.
Supporters deploy biological and commonsense arguments: the Ordinary Language Argument cites everyday attributions of identity to organisms much as in Ludwig Wittgenstein-inspired analyses; the Bodily Criterion Argument emphasizes organismal unity shared with examples from Jane Austen-era legal cases and clinical reports in neurology concerning split-brain patients. Thought experiments weave in paradigms from Derek Parfit (teletransportation), Thomas Nagel (subjective character), and scenarios paralleling the Trolley Problem to probe moral standing. Animalists challenge the transferability intuitions in the Prince and the Cobbler case and critique memory-based tests such as those discussed by John Locke and reenvisioned in contemporary philosophy of law discussions about personhood. Biological continuity examples draw on Charles Darwin’s speciation accounts and contemporary cases discussed in bioethics literature on transplantation and cryonics.
Critics argue against animalism using psychological continuity theories championed by Derek Parfit, and soul-based accounts connected to thinkers like René Descartes and various religious traditions represented by institutions such as Vatican City. Phenomenological and narrative identity theorists influenced by Paul Ricoeur and Maurice Merleau-Ponty emphasize first-person perspective and self-interpretation, challenging organismal reduction. Neuroscientific evidence from split-brain research and dissociative cases described by Sigmund Freud’s successors undercuts simple biological criteria. Competitors include criteria advanced by Sydney Shoemaker and David Lewis’s counterpart theory, as well as hybrid models integrating psychological and biological elements debated at Harvard University and Stanford University.
If human persons are organisms, then ethical and legal concepts—such as responsibility, punishment, and rights—interact differently with questions about competence, personhood, and end-of-life decisions. Animalism affects debates in bioethics over abortion, euthanasia, and embryonic research addressed in policy forums at United Nations agencies and national legislatures. It reframes moral status discussions involving nonhuman animals in the wake of work by Peter Singer and institutions like The Humane Society; it also influences criminal law scholarship drawing on ideas from Cesare Beccaria and modern rehabilitative frameworks. Animalist commitments recalibrate attribution of moral agency in clinical cases that feature pronounced psychological discontinuities, as analyzed in reports from World Health Organization committees.
Contemporary work examines animalism’s intersection with empirical findings in developmental psychology, neuroscience, and genomics. Debates center on thought experiments reinvented for digital contexts—such as mind uploading and AI personhood explored at Massachusetts Institute of Technology and Google DeepMind—and implications for legal personhood in corporate and nonhuman animal contexts adjudicated in courts like the Supreme Court of the United States. Scholarly exchanges continue in journals and conferences affiliated with Cambridge University Press, Oxford University Press, and the Mind Association, and in interdisciplinary forums addressing transhumanist scenarios promoted by figures associated with Singularity University. Ongoing research evaluates how organism-centered views cohere with advances in cloning, stem-cell science, and debates at bodies such as the National Institutes of Health.