P. Fontes da Costa, “Representações do Corpo no Portugal do Século XVIII” [Representations of the Body in Eighteenth Century Portugal], Colóquio internacional sobre o conceito de natureza e a representação do corpo, Universidade Federal de Minas Gerais, Brasil, 4-5 December 2014 (invited speaker).
P. Fontes da Costa, “The Depiction of Singularity: Representations of the Monstrous Body in Eighteenth-Century Portugal”, Colóquio Internacional Natureza, Medicina e Sensibilidade Moderna, Fundação Calouste Gulbenkian, 19-21 November 2014 (invited speaker).
P. Fontes da Costa, “Os jardins medicinais em Garcia de Orta e na Europa renascentista” [Medicinal Gardens in Garcia de Orta and in Renaissance Europe], O Jardim de Orta: Botânica, Medicina e Cultura nos Colóquios de Garcia de Orta, Biblioteca Nacional de Portugal, 24-25 October 2013.
P. Fontes da Costa, “Identity and the Construction of Memory in the Representation of Garcia de Orta”, Colóquio Internacional “O Mundo num Livro: Abordagens Interdisciplinares aos Colóquios dos simples e drogas da Índia de Garcia de Orta/ “A World in a Book: Interdisciplinary Approaches to Garcia de Orta’s Colloquies on the Simple and Drugs of India“, Fundação Calouste Gulbenkian, 10-11 April 2013.
P. Fontes da Costa, “Women, Poetry and Science: An Historiographical Perspective”, International Symposia of the Commission on Women and Gender Studies of the DHST, École Normale Supérieure, Paris, 14-17 September 2011.
P. Fontes da Costa, “Geographical expansion and the reconfiguration of medical authority: Garcia de Orta’s Colloquies on the simples and drugs of India (1563)”, Portuguese “, Physicians in the Early Modern Period: Geographical Expansion and Medical Prudence The Warburg Institute”, University of London, 18-19 February 2011 (invited speaker).
F. Rayner, P. Fontes da Costa, “Theatres of Science and Notions of Ethical Responsibility”, European Society for the Study of English, Turin, 24-28 August 2010.
P. Fontes da Costa, “The Beauty of Monsters”, International Group for the Cultural Studies of the Body, 1st Meeting, The Beautiful and the Ugly: Body Representations, Lisbon, 7-8 January 2010.
P. Fontes da Costa, “Monstrosities and Anatomical Collections”, Conference on Anatomical Collections, University of Leiden, 5-7 November 2009 (invited speaker).
P. Fontes da Costa, “Monstrosities and the problem of the origin of species in Darwin”, Darwin, Darwinisms and Evolution, Universidade de Coimbra, 22-23 September 2009 (invited speaker).
P. Fontes da Costa, “A representação do corpo hermafrodita em obras médicas do século XVI ao XVIII”, O desenho do corpo na Arte e na Ciência, Faculty of Sciences, Universidade de Lisboa, 20 May 2009 (invited speaker).
P. Fontes da Costa and H. Pinto, “Disputes on the Origin and Meaning of Comets: What they Reveal about the Portuguese Enlightenment?”, 6th STEP Meeting , Istanbul, Turkey, 18-22 June 2008.
P. Fontes da Costa, “The Politics of Sexual Difference: Visual Representations of Hermaphrodites in the Eighteenth Century”, Figurations of Knowledge, European Conference of the Society for Literature, Science, and the Arts (SLSA) at the Center for Literary and Cultural Research, Berlin (ZfL), 3-7 June, 2008.
P. Fontes da Costa, “Garcia de Orta and the Circulation of Botanical and Medical Knowledge from Portuguese Asia to Europe in the Sixteenth Century” , British Society for the History of Science 60th annual Meeting, University of Manchester, United Kingdom, 27 June-1 July 2007.
P. Fontes da Costa, “The Linnaean Language of Nature in eighteenth-century Portugal”, University of Uppsala, Sweden, 7-10 June 2007.
P. Fonte da Costa,”A visualização da natureza no entendimento Europeu do Novo Mundo” [The Visualization of Nature and the European Understanding of the New World], IV Encontro de Filosofia e História da Biologia São Paulo, Brasil, 17-19 August 2006 (invited speaker, plenary lecture).
P. Fontes da Costa, “A investigação em História da Ciência em Portugal: Perspectiva historiográfica e novos desafios” [Research in History of Science in Portugal: Historiographical Perspective and New Challenges], Universidade Pontifícia de São Paulo, Brazil, 16 August 2006 (invited speaker).
P. Fontes da Costa, “Women and the Popularisation of Botany in Early Nineteenth Portugal: The Marquesa de Alorna´s Botanical Recreations”, 5th STEP Meeting: Popularisation of Science and Technology in the European Periphery, Museu de Menorca (Mahon), Minorca, Spain, 1-3 June 2006.
P. Fontes da Costa, “Singularidade, Sexualidade e Género: O Estatuto do Hermafrodita Humano na Encyclopédie de Diderot e d’Alembert” [Singularity, Sexuality and Gender: The Status of Hermaphrodites in Diderot e d’Alembert’s Encyclopédie], Colóquio Interdisciplinar O Estatuto do Singular: Estratégias e Perspectivas, Fundação Calouste Gulbenkian, 25-27 May 2006 (invited speaker).
P. Fontes da Costa, “Images and the Understanding of the Natural World in Sixteenth-Century Portugal”, 2nd Iberoamerican Meeting of Philosophy of Science and Technology, Universidad de La Laguna, Tenerife, Spain, 26-30 September 2005 (invited speaker).
P. Fontes da Costa; A. Jesus, “Ribeiro Sanches and the exchange of medical knowledge in eighteenth-century Europe”, XXth International Congress of History of Science, Beijing, China, 24-30 July 2005.
P. Fontes da Costa, “Da cultura da Curiosidade à Teorização do Mundo Natural: O Entendimento da Novidade e da Diversidade” [From the Culture of Curiosity to the Theorization of the Natural World: The Understanding of Novelty and Diversity], Faculty of Medicine, Universidade de Lisboa, 19 April 2005.
P. Fontes da Costa, “Incerteza e Relação no Entendimento do Corpo Monstruoso no século XVIII”, 1.º Encontro Internacional de Filosofia da Medicina da Universidade da Beira Interior, 11-13 November 2004 (invited speaker).
P. Fontes da Costa, “Monsters, Science and Ridicule in Eighteenth Century England”, Theatres of Science: Crossovers and Confluences, University of Glamorgan, Wales, U.K., 8-11 September 2004.
P. Fontes da Costa, “The Meaning and Visualization of Hermaphrodites in the Encyclopédie of Diderot and d’Alembert”, 72nd Anglo-American Conference of Historians “The Body”, Institute of Historical Research, University of London, 2-4 July 2003.
P. Fontes da Costa, “The Illustration of Exotic Animals in XVI Century Portugal”, 14th International Conference of the Society for the History of Natural History, “Illuminating Nature: Spotlights on natural history illustration from cave paintings to photographs”, Florence, 8-10 May 2003.
P. Fontes da Costa, ”Between Fact and Fiction: Narratives of Monsters and Strange Beasts in Eighteenth-Century Portugal”, The Second European Conference of the International Society for Literature and Science, Aarhus, Denmark, 8-12 May 2002.
P. Fontes da Costa, “A representação do singular na história natural e medicina do século XVIII” [The Representation of the Singular in Natural History and Medicine in the Eighteenth Century], Seminário do Grupo de História e Filosofia da Ciência da Universidade de Lisboa, 6 February 2002.
P. Fontes da Costa, “O Corpo Insólito: O Entendimento do Monstruoso na Royal Society of London no século XVIII” [The Singular Body: The Understanding of the Monstrous at the Royal Society of London in the Eighteenth Century], Calouste Gulbenkian Foundation, Colóquio Científico e Entrega de Distinções, 7 March, 2001.
P. Fontes da Costa, “The Embellishment of the Singular: Rhetoric and Authority in Eighteenth-Century Reports of Extraordinary Phenomena of Nature”, International Society for the History, Philosophy, and Social Studies of Biology, Quinipiac University, Hamden CT, USA, 18-22 July 2001.
P. Fontes da Costa, ‘“Mas, Mulier, Maurus, Mundi Mirabile Monstrum”: An Eighteenth-Century Hermaphrodite Through the Looking Glass’, Department of History and Philosophy of Science, University of Cambridge, 3 March 1997.