RESUMEN: Aplicando una metodología hermenéutica intertextual, el artículo ofrece un análisis de diferentes momentos en la articulación del humanismo poscolonial, sistematizando los nexos conceptuales entre las propuestas de Fanon / Bhabha y Bhabha / Said. El artículo interpreta el humanismo poscolonial como una epistemología crítica que permite dilucidar los mecanismos de violencia cultural y epistémica inherentes a los proyectos y a las narrativas etno-nacionalistas, y plantea la posibilidad de un horizonte de ciudadanía intercultural en el contexto presente de crisis de (...) la Unión Europea posBrexit.ABSTRACT: This article offers an analysis of different moments in the articulation of postcolonial humanism through a systematization of conceptual nexus among the proposals of Fanon / Bhabha and Bhabha / Said, the article highlights the contemporary dimensions of postcolonial humanism. By doing intertextual hermeneutic analysis, the article interprets postcolonial humanism as a critical epistemology that elucidates the mechanisms of cultural and epistemic violence inherent to ethno-nationalist narratives and strategies, in the current context of postBrexit EU crisis.PALABRAS CLAVE: interculturalidad; etno-nacionalismo; humanismo poscolonial; democracia; derechos universalesKEYWORDS: interculturality; ethno-nationalism; postcolonial humanism; democracy; universal rights. (shrink)

The aim of this article is to present a renewed reading of ethical-normative debates on recognition of cultural differences, by interrogating the initiatives that have constituted the international minority rights framework. The article is divided into three sections: 1. The first section approaches an introductory definition of minority rights. 2. The second section presents the philosophical reading of Charles Taylor on minority rights, within the ethical framework of his communitarian conception of freedom and individual development. 3. The third section presents (...) the philosophical reading of Bhabha on minority rights, within the ethical framework of his humanistic critique to the political construction of cultural differences. (shrink)

La génesis del humanismo en la UNESCO -- Maneras de pensar y hacer las paces -- El multiculturalismo revisitado desde la crítica poscolonial -- Las (des)ilusiones del pueblo : hegemonías, resistencias y nacionalismos -- El nuevo humanismo y la filosofía para la paz.

ABSTRACT Critiques leveled at epistemic decolonization call for a reorientation in theories of colonialism. The colonial imagination, a rhetorical tool that normalizes a sensible order of dispossession and appropriation, can be a reoriented site of contestation. By imagining an identity whose only means of relating is through opposition, the colonial imagination renders identities that inhabit a state of solitude. Two letters from Hernán Cortés to King Carlos V of Spain show how this colonial imagining aims to normalize dispossession and appropriation (...) of the relations Originary peoples have with lands, waters, airs, and other-than-human relatives. Considering this argument, rhetorical studies needs to readjust its analytical timeframe beyond the times of settler-colonial nation-states and colonization. (shrink)

A comienzos de la década de los 80, el filósofo Gilles Deleuze aplicó la teoría de la imagen de Bergson expuesta en Materia y Memoria (1896) a la imagen cinematográfica con la intención de desarrollar nuevas herramientas conceptuales que, a través de un análisis de la historia del cine, permitieran poder delinear mejor tanto la relación cognoscitiva más allá de los presupuestos de sujeto-objeto, como una teoría de la comunicación pre-verbal no estructuralizada fonéticamente que superara definitivamente la concepción lacaniana del (...) lenguaje. Si bien dichos análisis pueden ser vistos también como el establecimiento de unos principios alternativos a las teorías del montaje tanto de Vertov como de Eizenshtéin, el interés primario de nuestro paper se centrará en la redefinición de las categorías espacio-temporales que conlleva esta nueva teoría del cine esgrimida por Deleuze. Concretamente analizaremos cómo la nueva tecnología cinematográfica, especialmente en su desarrollo europeo de la segunda postguerra (Godard, Fellini, Syberberg, Tarkovski) supone una comprensión temporal por completo ajena a cualquier comprensión de causalidad lineal, teleológica o no, de corte cronológico. En su lugar, el cine en tanto que medio de comunicación propio del mundo metropolitano contemporáneo emplea unas categorías temporales más cercanas a conceptos como “acontecimiento” o “haecceitas”, que en algunos puntos lo acercan a la concepción del tiempo desarrollada por Walter Benjamin, pero que por otro lo relacionan directamente con formas aiónicas del mismo ya estudiadas por Deleuze en la década de los 60, y aplicadas al estudio del dadaísmo en la de los 70. (shrink)

J. T. Ismael's monograph is an ambitious contribution to metaphysics and the philosophy of language and mind. She tackles a philosophical question whose origin goes back to Descartes: What am I? The self is not a mere thing among things--but if so, what is it, and what is its relationship to the world?

The role of probability is one of the most contested issues in the interpretation of contemporary physics. In this paper, I’ll be reevaluating some widely held assumptions about where and how probabilities arise. Larry Sklar voices the conventional wisdom about probability in classical physics in a piece in the Stanford Online Encyclopedia of Philosophy, when he writes that “Statistical mechanics was the first foundational physical theory in which probabilistic concepts and probabilistic explanation played a fundamental role.” And the conventional wisdom (...) about quantum probabilities is that they are basic, not reducible to the types of probabilities we see in statistical mechanics. In the first section of this paper, I’ll argue that in fact classical physics was steeped in probability long before statistical mechanics came on the scene, specifically, that an objective measure over phase space is an indispensable component of any informative physical theory. In the next section, I’ll argue that this objective measure is the fundamental form of physical probability and that quantum probabilities can be defined in terms of it. In the last, I’ll raise some questions about the metaphysical status of the fundamental measure. (shrink)

In a famous passage drawing implications from determinism, Laplace introduced the image an intelligence who knew the positions and momenta of all of the particles of which the universe is composed, and asserted that in a deterministic universe such an intelligence would be able to predict everything that happens over its entire history. It is not, however, difficult to establish the physical possibility of a counterpredictive device, i.e., a device designed to act counter to any revealed prediction of its behavior. (...) What would happen if a Laplacean intelligence were put into communication with such a device and forced to reveal its prediction of what the device would do on some occasion? On the one hand, it seems that the Laplacean Intelligence should be able to predict the device's behavior. On the other hand, it seems like that device should be able to act counter to the prediction. An examination of the puzzle leads to clarification of what determinism does entail, with some insights about various other things along the way. (shrink)

Quantum mechanics seems to portray nature as nonseparable, in the sense that it allows spatiotemporally separated entities to have states that cannot be fully specified without reference to each other. This is often said to implicate some form of “holism.” We aim to clarify what this means, and why this seems plausible. Our core idea is that the best explanation for nonseparability is a “common ground” explanation, which casts nonseparable entities in a holistic light, as scattered reflections of a more (...) unified underlying reality. (shrink)

In 1687 Isaac Newton ushered in a new scientific era in which laws of nature could be used to predict the movements of matter with almost perfect precision. Newton's physics also posed a profound challenge to our self-understanding, however, for the very same laws that keep airplanes in the air and rivers flowing downhill tell us that it is in principle possible to predict what each of us will do every second of our entire lives, given the early conditions of (...) the universe. Can it really be that even while you toss and turn late at night in the throes of an important decision and it seems like the scales of fate hang in the balance, that your decision is a foregone conclusion? Can it really be that everything you have done and everything you ever will do is determined by facts that were in place long before you were born? This problem is one of the staples of philosophical discussion. It is discussed by everyone from freshman in their first philosophy class, to theoretical physicists in bars after conferences. And yet there is no topic that remains more unsettling, and less well understood. If you want to get behind the façade, past the bare statement of determinism, and really try to understand what physics is telling us in its own terms, read this book. The problem of free will raises all kinds of questions. What does it mean to make a decision, and what does it mean to say that our actions are determined? What are laws of nature? What are causes? What sorts of things are we, when viewed through the lenses of physics, and how do we fit into the natural order? Ismael provides a deeply informed account of what physics tells us about ourselves. The result is a vision that is abstract, alien, illuminating, and-Ismael argues-affirmative of most of what we all believe about our own freedom. Written in a jargon-free style, How Physics Makes Us Free provides an accessible and innovative take on a central question of human existence. (shrink)

Ayahuasca is a psychoactive substance from the Amazon rainforest regions of Peru, Colombia, Ecuador, and Brazil. Although its use originated among indigenous tribes in the Amazon basin, it has become increasingly popularized in Western society through the transnational markets of spirituality and religiosity driven by globalization, Postmodernity, and new forms of religious practice. In this paper, we will overview the arrival of ayahuasca in Uruguay by way of four different groups. We will then focus on one of these groups, a (...) holistic alternative therapies center, influenced by Peruvian shamanic traditions in the design of its ceremonies. Last we will introduce a “distributed cognition” model to explain ayahuasca rituals as a system of activity. (shrink)

Quantum mechanics seems to portray nature as nonseparable, in the sense that it allows spatiotemporally separated entities to have states that cannot be fully specified without reference to each other. This is often said to implicate some form of “holism.” We aim to clarify what this means, and why this seems plausible. Our core idea is that the best explanation for nonseparability is a “common ground” explanation, which casts nonseparable entities in a holistic light, as scattered reflections of a more (...) unified underlying reality. (shrink)

In this paper, I defend an empiricist account of modality that keeps a substantive account of modal commitment, but throws out the metaphysics. I suggest that if we pair a deflationary attitude toward representation with a substantive account of how scientific models are constructed and put to use, the result is an account that deflates the metaphysics of modal commitment without deflating the content of modal claims.

The chance of a physical event is the objective, single-case probability that it will occur. In probabilistic physical theories like quantum mechanics, the chances of physical events play the formal role that the values of physical quantities play in classical (deterministic) physics, and there is a temptation to regard them on the model of the latter as describing intrinsic properties of the systems to which they are assigned. I argue that this understanding of chances in quantum mechanics, despite being a (...) part of the orthodox interpretation of the theory and the most prevalent view in the physical community, is incompatible with a very wide range of metaphysical views about the nature of chance. The options that remain are unlikely to be attractive to scientists and scientifically minded philosophers. (shrink)

J. T. Ismael's monograph is an ambitious contribution to metaphysics and the philosophy of language and mind. She tackles a philosophical question whose origin goes back to Descartes: What am I? The self is not a mere thing among things--but if so, what is it, and what is its relationship to the world? Ismael is an original and creative thinker who tries to understand our problematic concepts about the self and how they are related to our use of (...) language in particular. (shrink)

I propose, in the context of Everett interpretations of quantum mechanics, a way of understanding how there can be genuine uncertainty about the future notwithstanding that the universe is governed by known, deterministic dynamical laws, and notwithstanding that there is no ignorance about initial conditions, nor anything in the universe whose evolution is not itself governed by the known dynamical laws. The proposal allows us to draw some lessons about the relationship between chance and determinism, and to dispel one source (...) of the tendency among Everettians to introduce consciousness as a primitive element into physical description. (shrink)

The preponderance of female stereotypes in various films has become intense. Regardless of film genre, its effect on media-saturated culture has become somehow profound. This has become a concern to many people especially to feminists. Hence, this film study is conducted to explore how the female lead characters are stereotyped in films particularly in select official James Bond 007 films. During the analysis, the researcher utilizes an adapted film analysis rubric. The results show that: 1) the leading female characters in (...) the three films analyzed are portrayed mainly as objects of Bond’s sexual desire while he establishes and maintains a chauvinistic role all throughout each film; 2) Bond engages in dualistic relationships with the lead female characters when he uses them to satisfy his own desires for a woman as a means to an end (as particularly exemplified and portrayed in the character of Countess Lisl in For Your Eyes Only); 3) the treatment of some female stereotypes in the three films analyzed is consistent, e.g. a particular stereotype of a lead female character as object of sexual desire is sustained all throughout the film. The study, therefore, concludes that the lead female characters in the select films are generally portrayed in oppressive stereotypes. Keywords: Mass Communication, lead female character, female stereotypes, James Bond007, descriptive design (qualitative film analysis), Philippines. (shrink)

Huw Price has argued that on an interventionist account of cause the distinction is perspectival, and the claim prompted some interesting responses from interventionists and in particular an exchange with Woodward that raises questions about what it means to say that one or another structure is perspectival. I’ll introduce his reasons for claiming that the distinction between cause and effect on an interventionist account is perspectival. Then I’ll introduce a distinction between different ways in which a class of concepts can (...) be said to depend on facts about their users. Three importantly different forms of dependence will emerge from the discussion: Pragmatic dependence on us: truth conditions for x-beliefs can be given by a function f \ of more fundamental physical structures making no explicit reference to human agents. But there are any other number of functions ) ontologically on a par with x and what explains the distinguished role f plays in our practical and epistemic lives are facts about us. Implicit relativization: truth conditions for x-beliefs are relative to agent or context; the context supplies the value of a hidden parameter that determines the truth of x-beliefs. Indexicals: like implicit relativization except that the surface syntax contains a term whose semantic value is context-dependent. I suggest that Price’s insights are best understood in the first way. This will draw a crucial disanalogy with his central examples of perspectival concepts, but it will refine the thesis in a way that is more faithful to what his arguments show. The refined thesis will also support generalization to other concepts, and clarify the foundations of the quite distinctive research program that Price has been developing for a number of years. (shrink)

Graphical AbstractPheomelanogenesis may have evolved as an excretory mechanism to remove excess cysteine, and in humans this might potentially confer a greater ability to avoid disease such as Parkinson's and Alzheimer's disease, in which excess cysteine is a contributory cause.

En la presente investigación se valoran las prácticas inclusivas de 6 1 docentes de educación básica de Colima, Sonora y San Luis Potosí adscritos a escuelas urbanas y rurales de México nominadas como exitosas. Se aplicaron varios instrumentos, como la GEPIA, la SACIE, el TEIP, el Cuestionario para Favorecer los Aprendizajes de Mitchell y el Protocolo C ODCA.

Dennett argues that the decentralized view of human cognitive organization finding increasing support in parts of cognitive science undermines talk of an inner self. On his view, the causal underpinnings of behavior are distributed across a collection of autonomous subsystems operating without any centralized supervision. Selves are fictions contrived to simplify description and facilitate prediction of behavior with no real correlate inside the mind. Dennett often uses an analogy with termite colonies whose behavior looks organized and purposeful to the external (...) eye, but which is actually the emergent product of uncoordinated activity of separate components marching to the beat of their individual drums. I examine the cognitive organization of a system steering by an internal model of self and environment, and argue that it provides a model that lies between the image of mind as termite colony and a naïve Cartesianism that views the self as inner substance. (shrink)

In this paper we study the variety \(\textsf{WL}\) of bounded distributive lattices endowed with an implication, called weak Lewis distributive lattices. This variety corresponds to the algebraic semantics of the \(\{\vee,\wedge,\Rightarrow,\bot,\top \}\) -fragment of the arithmetical base preservativity logic \(\mathsf {iP^{-}}\). The variety \(\textsf{WL}\) properly contains the variety of bounded distributive lattices with strict implication, also known as weak Heyting algebras. We introduce the notion of WL-frame and we prove a representation theorem for WL-lattices by means of WL-frames. We extended (...) this representation to a topological duality by means of Priestley spaces endowed with a special neighbourhood relation between points and closed upsets of the space. These results are applied in order to give a representation and a topological duality for the variety of weak Heyting–Lewis algebras, i.e., for the algebraic semantics of the arithmetical base preservativity logic \(\textsf{iP}^{-}\). (shrink)

O foco deste artigo é realçar as contribuições de Deleuze e Guattari sobre a linguagem, e como se articula com o legado de Canetti e as noções de palavras de ordem, discurso indireto – além dos conceitos mais conhecidos de agenciamento, imanência e a formação de saber. Além disso, explica-se a relação entre o discurso e o poder, tal como é compreendida por Fairclough e a conexão que o poder tem com as estruturas sociais. A aproximação entre a linguagem e (...) o poder foi contemplada por esses autores a partir de uma perspectiva diferente, enquanto Deleuze e Guattari voltavam-se para o poder imanente da linguagem, Fairclough focou no poder existente a partir da relação entre o discurso e a estrutura social. (shrink)

Before the twentieth century, the Universe was usually imagined as a large spatially extended thing unfolding in time. The past was fixed and the future was open; unfolding was conceived as an asymmetric process of coming into being. Relativity introduced a new vision in which space and time are presented together as a single four-dimensional manifold of events. That, together with the fact that the fundamental laws of our classical theories are symmetric in time, made understanding why the past and (...) future present themselves so differently in our experience one of the central challenges of physics. The last two centuries have seen a great deal of progress in understanding various of the so-called arrows of time: the thermodynamic arrow, the cosmological arrow, the arrow of knowledge or information. There remains an outstanding piece of this puzzle that has seen little progress, one that Roger Penrose described in his beautiful paper Singularities and Time-Asymmetry in 1979 as: “The arrow most difficult to comprehend … namely the feeling of relentless forward temporal progression, according to which potentialities seem to be transformed into actualities.”I will propose that the insight needed to resolve the problem involves taking into account that we are part of the universe and that any attempt to model it as a totality involves self-reference. I will argue specifically that self-reference, against the background of a thermodynamic gradient, creates an instability in an embedded agent’s ability to know the future or even treat it as a potential object of knowledge. That instability captures the sense in which the future remains for her perpetually open and the passage of time resolves openness into the fixity of fact. (shrink)

This chapter addresses the worry that the existence of causal antecedents to your choices means that you are causally compelled to act as you do. It begins with the folk notion of cause, leads the reader through recent developments in the scientific understanding of causal concepts, and argues that those developments undermine the threat from causal antecedents. The discussion is then used as a model for a kind of naturalistic metaphysics that takes its lead from science, letting everyday concepts be (...) shaped and transformed by scientific developments. (shrink)

Is there more that one "Curie's principle"? How far are different formulations legitimate? What are the aspects that make it so scientifically fruitful, independently of how it is formulated? The paper is devoted to exploring these questions. We start with illustrating Curie's original 1894 article and his focus. Then, we consider the way that the discussion of the principle took shape from early commentators to its modern form. We say why we think that the modern focus on the inter-state version (...) of the principle loses sight of some of the most interesting significant applications of the principle. Finally, we address criticism of the principle put forward by Norton and purported counterexamples due to Roberts. (shrink)

The arrival of Buddhism to Uruguay is related to various historical and cultural factors, such as the democratic opening at eighties, the progressive globalization in the country, the break of post (modernism) with a hegemonic rationalist-positivist model, the emergence of so-called New Religious Movements and opening of goods symbolic-religious markets, generally aimed at middle and upper social strata with economic and cultural capital is conducive to the proposed use of existential and introspective way of life. In this paper we analyze (...) the arrival of the different Buddhist lineages in Uruguay (Tibetan and Japanese), and the historical and socio-cultural context which activates their emergency. (shrink)

Nuestra pretensión en este artículo es modesta: nos proponemos únicamente poner de relieve el doble sentido de los términos "idea" y "sensación" en la filosofía de los siglos XVII y XVIII. Como es sabido, ambos términos constituyen, respectivamente, el núcleo esencial del racionalismo y el empirismo. La idea para el primero y la sensación para el segundo se erigen ciertamente en piezas gnoseológicas clave sin las cuales ni uno ni otro podrían ser cabalmente comprendidos.

_ Source: _Volume 31, Issue 2, pp 127 - 146 The aim of this paper is to trace Thomas Hobbes’s arguments for the rejection of spiritual possession in _Leviathan_. Several layers of Hobbes’s thought converge in this subject: his suggestion regarding the sovereign’s right to control religious doctrine; his mechanistic critique of incorporeal substances; his tirade against demonology and Pagan philosophy; his ideas about fear and the natural seeds of religion; his Biblical criticism. Hobbes’s reflections over the matter of spiritual (...) possession allowed him to simultaneously attack institutionalized and charismatic supernatural experiences, rejecting on Biblical as well as philosophical grounds the possibility of demonic and divine possession. This assault on traditional pneumatology led him to new interpretations of the notions of spirit and immateriality, a core element in _Leviathan_’s resignification of the interaction between nature and supernature. The paper will address Hobbes’s call for a civil exorcism―political, exegetical, and philosophical―against the spiritual powers that possess the Commonwealth. (shrink)

Nous proposons ci-après l’étude de la relation entre science et spiritualité chez Georges Lemaître, savant et croyant, un des acteurs principaux de la fondation de la cosmologie moderne. Il s’agit d’explorer la nature et le rôle de cette relation lors d’un épisode important de l’histoire des sciences, plus généralement de l’histoire de la pensée. Le mot spiritualité est ici entendu au sens suivant : l’idée et la recherche du divin, du vrai. Il résulte de la présente approche une appréhension élargie (...) de la prime histoire de la théorie dite du « big bang ». (shrink)

:Rawls ignited a debate in political theory when he introduced a division between the ideal and nonideal parts of a theory of justice. In the ideal part of the theory, one presents a positive conception of justice in a setting that assumes perfect compliance with the rules of justice. In the nonideal part, one addresses the question of what happens under departures from compliance. Critics of Rawls have attacked his focus on ideal theory as a form of utopianism, and have (...) argued that political theory should be focused instead on providing solutions to the manifest injustices of the real world. In this essay, I offer a defense of the ideal/nonideal theory distinction according to which it amounts to nothing more than a division of labor, and explore some scientific analogies. Rawls’s own focus on the ideal part of the theory, I argue, stems from a felt need to clarify the foundations of justice, rather than a utopian neglect of real world problems. (shrink)

: I’m going to generalize the points that L.A. Paul makes in her Transformative Experience and push them in a somewhat different direction. I will begin by talking about transformative experience in a generic sense and say how ubiquitous it is. Then I’ll distinguish that from the strict, specialized sense of transformative experience that Paul identifies. I will say why Paul’s focus on the strict and specialized sense allows her to arrive at a strong conclusion, but bypasses the more interesting (...) lessons which concern the importance of de se imagination and the possibilities for educating it. Keywords: Transformative Experience; Laurie A. Paul; Imagination; Decision Esperienza, trasformazione, immaginazione Riassunto: Intendo generalizzare le questioni sollevate da L.A. Paul nel suo Trasformative Experience, spingendole in una direzione differente. Inizierò parlando dell’esperienza trasformativa in senso generico, illustrando quanto questa sia diffusa. Quindi distinguerò questo senso generico di esperienza trasformativa da quello più ristretto identificato da Paul. Illustrerò poi le ragioni per cui la messa a fuoco di questo senso ristretto e specifico da parte di Paul le consente di giungere a conclusioni forti, evitando però i compiti più interessanti che riguardano l’importanza dell’immaginazione de se e le possibilità di educarla. Parole chiave: Esperienza trasformativa; Laurie A. Paul; Immaginazione; Decisione. (shrink)

BackgroundDistorted gambling-related cognitions are tightly related to gambling problems, and are one of the main targets of treatment for disordered gambling, but their etiology remains uncertain. Although folk wisdom and some theoretical approaches have linked them to lower domain-general reasoning abilities, evidence regarding that relationship remains unconvincing.MethodIn the present cross-sectional study, the relationship between probabilistic/abstract reasoning, as measured by the Berlin Numeracy Test, and the Matrices Test, respectively, and the five dimensions of the Gambling-Related Cognitions Scale, was tested in a (...) sample of 77 patients with gambling disorder and 58 individuals without gambling problems.Results and interpretationNeither BNT nor matrices scores were significantly related to gambling-related cognitions, according to frequentist analyses, performed both considering and disregarding group in the models. Correlation Bayesian analyses largely supported the null hypothesis, i.e., the absence of relationships between the measures of interest. This pattern or results reinforces the idea that distorted cognitions do not originate in a general lack of understanding of probability or low fluid intelligence, but probably result from motivated reasoning. (shrink)

A reading is given of Curie''s Principle that the symmetry of a cause is always preserved its effects. The truth of the principle is demonstrated and its importance, under the proposed reading, is defended.As far as I see, all a priori statements in physics have their origin in symmetry. (Weyl, Symmetry, p. 126).

Mechanisms occurring at the atomic level are now known to drive processes essential for life, as revealed by quantum effects on biochemical reactions. Some macroscopic characteristics of organisms may thus show an atomic imprint, which may be transferred across organisms and affect their evolution. This possibility is considered here for the first time, with the aim of elucidating the appearance of an animal innovation with an unclear evolutionary origin: migratory behaviour. This trait may be mediated by a radical pair (RP) (...) mechanism in the retinal flavoprotein cryptochrome, providing essential magnetic orientation for migration. Isotopes may affect the performance of quantum processes through their nuclear spin. Here, we consider a simple model and then apply the standard open quantum system approach to the spin dynamics of cryptochrome RP. We changed the spin quantum number (I) and g‐factor of hydrogen and nitrogen isotopes to investigate their effect on RP's yield and magnetic sensitivity. Strong differences arose between isotopes with I = 1 and I = 1/2 in their contribution to cryptochrome magnetic sensitivity, particularly regarding Earth's magnetic field strengths (25–65 µT). In most cases, isotopic substitution improved RP's magnetic sensitivity. Migratory behaviour may thus have been favoured in animals with certain isotopic compositions of cryptochrome. (shrink)