{"id":802,"date":"2026-01-29T22:09:11","date_gmt":"2026-01-29T22:09:11","guid":{"rendered":"https:\/\/science.peta.org\/paradigm-shift\/"},"modified":"2026-06-16T21:12:16","modified_gmt":"2026-06-16T21:12:16","slug":"cambio-de-paradigma","status":"publish","type":"page","link":"https:\/\/science.peta.org\/es\/cambio-de-paradigma\/","title":{"rendered":"Necesidad de un cambio de paradigma"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Si queremos que los limitados fondos p\u00fablicos se utilicen de manera responsable, se deben financiar estudios confiables y m\u00e9todos de investigaci\u00f3n que conduzcan a tratamientos eficaces para las enfermedades y protejan la salud humana y el ambiente. Desde hace tiempo existe evidencia de que los experimentos en animales est\u00e1n obstaculizando el desarrollo de tratamientos y curas para enfermedades humanas. El consenso cient\u00edfico en contra del uso de animales en  experimentaci\u00f3n y pruebas regulatorias puede observarse en diversos \u00e1mbitos, incluido el aumento de publicaciones que documentan el limitado poder predictivo de los experimentos en animales, una mayor conciencia sobre la cognici\u00f3n y la capacidad de sentir de los animales y la r\u00e1pida disminuci\u00f3n del apoyo p\u00fablico al uso de animales. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Si bien en todo el mundo se hab\u00edan iniciado algunas medidas para planear la eliminaci\u00f3n progresiva de la experimentaci\u00f3n y las pruebas en animales,<sup data-fn=\"d5a704ae-aa5e-4e89-89a6-3346b29df07a\" class=\"fn\"><a href=\"#d5a704ae-aa5e-4e89-89a6-3346b29df07a\" id=\"d5a704ae-aa5e-4e89-89a6-3346b29df07a-link\">1<\/a><\/sup><sup data-fn=\"05cd0459-a65d-441e-b9a9-69d04bc57b1c\" class=\"fn\"><a href=\"#05cd0459-a65d-441e-b9a9-69d04bc57b1c\" id=\"05cd0459-a65d-441e-b9a9-69d04bc57b1c-link\">2<\/a><\/sup><sup data-fn=\"ee0979eb-1c14-4538-9a9f-98751c03c286\" class=\"fn\"><a href=\"#ee0979eb-1c14-4538-9a9f-98751c03c286\" id=\"ee0979eb-1c14-4538-9a9f-98751c03c286-link\">3<\/a><\/sup><sup data-fn=\"0156d275-0e45-42e0-b636-a96bb8e834e8\" class=\"fn\"><a href=\"#0156d275-0e45-42e0-b636-a96bb8e834e8\" id=\"0156d275-0e45-42e0-b636-a96bb8e834e8-link\">4<\/a><\/sup> no fue sino hasta 2025 que las agencias federales de EE. UU. comenzaron a cambiar el <em>statu quo<\/em>.<sup data-fn=\"d84b1ad1-b636-4aa6-8578-47f2bc55a6ba\" class=\"fn\"><a href=\"#d84b1ad1-b636-4aa6-8578-47f2bc55a6ba\" id=\"d84b1ad1-b636-4aa6-8578-47f2bc55a6ba-link\">5<\/a><\/sup><sup data-fn=\"14d783e6-d5d8-4fc2-b465-703aa7c4ad26\" class=\"fn\"><a href=\"#14d783e6-d5d8-4fc2-b465-703aa7c4ad26\" id=\"14d783e6-d5d8-4fc2-b465-703aa7c4ad26-link\">6<\/a><\/sup><sup data-fn=\"f6041958-2972-4d4e-9d69-0168ef910c4a\" class=\"fn\"><a href=\"#f6041958-2972-4d4e-9d69-0168ef910c4a\" id=\"f6041958-2972-4d4e-9d69-0168ef910c4a-link\">7<\/a><\/sup><sup data-fn=\"101c4c75-92b2-4cb2-8210-bfdafcc58cbd\" class=\"fn\"><a href=\"#101c4c75-92b2-4cb2-8210-bfdafcc58cbd\" id=\"101c4c75-92b2-4cb2-8210-bfdafcc58cbd-link\">8<\/a><\/sup> Los cambios que se est\u00e1n produciendo son significativos, pero son solo el comienzo. Eliminar la experimentaci\u00f3n y las pruebas en animales requiere planificaci\u00f3n, acci\u00f3n coordinada, mecanismos de medici\u00f3n y transparencia.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Modernicemos la Investigaci\u00f3n YA<\/strong> ofrece una gu\u00eda para que las personas responsables de pol\u00edticas p\u00fablicas, las agencias financiadoras, las empresas y la comunidad cient\u00edfica puedan planear las intervenciones necesarias para lograr la eliminaci\u00f3n del uso de animales en la investigaci\u00f3n biom\u00e9dica.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Abandonar los experimentos en animales permitir\u00e1 un crecimiento sustancial de los sectores cient\u00edfico y tecnol\u00f3gico y un retorno m\u00e1s r\u00e1pido de la inversi\u00f3n en investigaci\u00f3n y desarrollo de medicamentos,<sup data-fn=\"d696f47d-8dbc-42bd-8897-8034adc21fe6\" class=\"fn\"><a href=\"#d696f47d-8dbc-42bd-8897-8034adc21fe6\" id=\"d696f47d-8dbc-42bd-8897-8034adc21fe6-link\">9<\/a><\/sup> como se ha visto tras la prohibici\u00f3n de las pruebas de cosm\u00e9ticos en la Uni\u00f3n Europea (UE). Redirigir la financiaci\u00f3n de la investigaci\u00f3n hacia m\u00e9todos relevantes para los humanos, capaces de recapitular la fisiolog\u00eda y la biolog\u00eda humanas sin usar animales ni sus tejidos, permitir\u00e1 que los tratamientos lleguen a los pacientes de forma m\u00e1s segura y, probablemente, en menos tiempo.<sup data-fn=\"7fd8fe66-bc05-463e-8663-b0f632bdc14f\" class=\"fn\"><a href=\"#7fd8fe66-bc05-463e-8663-b0f632bdc14f\" id=\"7fd8fe66-bc05-463e-8663-b0f632bdc14f-link\">10<\/a><\/sup><sup data-fn=\"e6490f1a-a45b-433d-89e3-cd4eb31e384d\" class=\"fn\"><a href=\"#e6490f1a-a45b-433d-89e3-cd4eb31e384d\" id=\"e6490f1a-a45b-433d-89e3-cd4eb31e384d-link\">11<\/a><\/sup><sup data-fn=\"59be4d41-a8ef-4348-90fa-4acd928b8ec2\" class=\"fn\"><a href=\"#59be4d41-a8ef-4348-90fa-4acd928b8ec2\" id=\"59be4d41-a8ef-4348-90fa-4acd928b8ec2-link\">12<\/a><\/sup><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En apoyo al uso de un enfoque basado en la evidencia para acelerar la llegada de medicamentos \u00fatiles a los pacientes que los necesitan, en un art\u00edculo publicado en&nbsp;2017 se solicit\u00f3 la eliminaci\u00f3n del uso de animales en experimentos en los que hay pruebas claras de que los animales no son \u00fatiles ni predicen las enfermedades humanas:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote simple is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">La bibliograf\u00eda est\u00e1 repleta de ejemplos de contradicciones y discordancias entre los efectos en animales y en humanos, incluidos muchos casos en los que resultados prometedores en animales no se han traducido en una eficacia cl\u00ednicamente significativa en humanos. Esto es especialmente cierto en algunas \u00e1reas terap\u00e9uticas como las enfermedades neurodegenerativas, psiqui\u00e1tricas y del sistema nervioso central, as\u00ed como en la septicemia y las enfermedades inflamatorias. <br><br>Estas complejidades inherentes a la investigaci\u00f3n traslacional brindan una oportunidad importante para explorar enfoques novedosos que produzcan resultados exitosos y eficaces lo m\u00e1s cercanos posible a un eventual beneficio para los humanos. Con varios ejemplos ilustrativos encontrados en nuestro programa de adaptaci\u00f3n de medicamentos, proponemos aqu\u00ed un enfoque para evaluar cu\u00e1ndo es apropiado llevar a cabo el \u201c\u00faltimo experimento primero\u201d, es decir, avanzar directamente a las investigaciones en humanos cuando es probable que el trabajo en animales no proporcione datos adecuados que generen aplicaciones humanas de inter\u00e9s. Esto representa un obst\u00e1culo importante \u2013y, en nuestra opini\u00f3n, evitable\u2013 a la introducci\u00f3n de medicamentos.<sup data-fn=\"718acde2-e758-4e15-beec-cd840b29235e\" class=\"fn\"><a href=\"#718acde2-e758-4e15-beec-cd840b29235e\" id=\"718acde2-e758-4e15-beec-cd840b29235e-link\">13<\/a><\/sup><\/p>\n<\/blockquote>\n\n\n\n<div class=\"wp-block-columns footnotes is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h5 class=\"wp-block-heading\">ReferencIAS<\/h5>\n\n\n<ol class=\"wp-block-footnotes\"><li id=\"d5a704ae-aa5e-4e89-89a6-3346b29df07a\">Pound P, Bracken MB. Is animal research sufficiently evidence based to be a cornerstone of biomedical research? <em>BMJ<\/em>. 2014;348:g3387. doi:10.1136\/bmj.g3387 <a href=\"#d5a704ae-aa5e-4e89-89a6-3346b29df07a-link\" aria-label=\"Jump to footnote reference 1\">\u21a9\ufe0e<\/a><\/li><li id=\"05cd0459-a65d-441e-b9a9-69d04bc57b1c\">Strauss M. Americans are divided over the use of animals in scientific research. Pew Research Center. Accessed February 15, 2023. <a href=\"https:\/\/www.pewresearch.org\/fact-tank\/2018\/08\/16\/americans-are-divided-over-the-use-of-animals-in-scientific-research\/\">https:\/\/www.pewresearch.org\/fact-tank\/2018\/08\/16\/americans-are-divided-over-the-use-of-animals-in-scientific-research\/<\/a> <a href=\"#05cd0459-a65d-441e-b9a9-69d04bc57b1c-link\" aria-label=\"Jump to footnote reference 2\">\u21a9\ufe0e<\/a><\/li><li id=\"ee0979eb-1c14-4538-9a9f-98751c03c286\">Newport F. Trends in U.S. adults\u2019 acceptance of moral and values behaviors. Gallup.com. September 4, 2025. Accessed February 7, 2026. <a href=\"https:\/\/news.gallup.com\/opinion\/polling-matters\/694550\/trends-adults-acceptance-moral-values-behaviors.aspx\">https:\/\/news.gallup.com\/opinion\/polling-matters\/694550\/trends-adults-acceptance-moral-values-behaviors.aspx<\/a> <a href=\"#ee0979eb-1c14-4538-9a9f-98751c03c286-link\" aria-label=\"Jump to footnote reference 3\">\u21a9\ufe0e<\/a><\/li><li id=\"0156d275-0e45-42e0-b636-a96bb8e834e8\">M\u00fcller N. Phase-out planning for animal experimentation: a definition, an argument, and seven action points. <em>ALTEX<\/em>. 2024;41(2):260-272. doi:10.14573\/altex.2312041 <a href=\"#0156d275-0e45-42e0-b636-a96bb8e834e8-link\" aria-label=\"Jump to footnote reference 4\">\u21a9\ufe0e<\/a><\/li><li id=\"d84b1ad1-b636-4aa6-8578-47f2bc55a6ba\">U.S. Food and Drug Administration. FDA announces plan to phase out animal testing requirement for monoclonal antibodies and other drugs. FDA.gov. April 10, 2025. Accessed February 6, 2026. <a href=\"https:\/\/www.fda.gov\/news-events\/press-announcements\/fda-announces-plan-phase-out-animal-testing-requirement-monoclonal-antibodies-and-other-drugs\">https:\/\/www.fda.gov\/news-events\/press-announcements\/fda-announces-plan-phase-out-animal-testing-requirement-monoclonal-antibodies-and-other-drugs<\/a> <a href=\"#d84b1ad1-b636-4aa6-8578-47f2bc55a6ba-link\" aria-label=\"Jump to footnote reference 5\">\u21a9\ufe0e<\/a><\/li><li id=\"14d783e6-d5d8-4fc2-b465-703aa7c4ad26\">National Institutes of Health. NIH to prioritize human-based research technologies. NIH.gov. April 29, 2025. Accessed February 6, 2026. <a href=\"https:\/\/www.nih.gov\/news-events\/news-releases\/nih-prioritize-human-based-research-technologies\">https:\/\/www.nih.gov\/news-events\/news-releases\/nih-prioritize-human-based-research-technologies<\/a> <a href=\"#14d783e6-d5d8-4fc2-b465-703aa7c4ad26-link\" aria-label=\"Jump to footnote reference 6\">\u21a9\ufe0e<\/a><\/li><li id=\"f6041958-2972-4d4e-9d69-0168ef910c4a\">Kime P. Cats and dogs will no longer be used in Navy research, Secretary says. Military.com. June 2, 2025. Accessed February 6, 2026. <a href=\"https:\/\/www.military.com\/daily-news\/2025\/06\/03\/cats-and-dogs-will-no-longer-be-used-navy-research-secretary-says.html\">https:\/\/www.military.com\/daily-news\/2025\/06\/03\/cats-and-dogs-will-no-longer-be-used-navy-research-secretary-says.html<\/a> <a href=\"#f6041958-2972-4d4e-9d69-0168ef910c4a-link\" aria-label=\"Jump to footnote reference 7\">\u21a9\ufe0e<\/a><\/li><li id=\"101c4c75-92b2-4cb2-8210-bfdafcc58cbd\">Grimm D. Exclusive: CDC to end all monkey research. <em>Science<\/em>. September 21, 2025. Accessed February 6, 2026. <a href=\"https:\/\/www.science.org\/content\/article\/exclusive-cdc-end-all-monkey-research\">https:\/\/www.science.org\/content\/article\/exclusive-cdc-end-all-monkey-research<\/a> <a href=\"#101c4c75-92b2-4cb2-8210-bfdafcc58cbd-link\" aria-label=\"Jump to footnote reference 8\">\u21a9\ufe0e<\/a><\/li><li id=\"d696f47d-8dbc-42bd-8897-8034adc21fe6\">Meigs L, Smirnova L, Rovida C, Leist M, Hartung T. Animal testing and its alternatives\u2014the most important omics is economics. <em>ALTEX<\/em>. 2018;35(3):275-305. doi:10.14573\/altex.1807041 <a href=\"#d696f47d-8dbc-42bd-8897-8034adc21fe6-link\" aria-label=\"Jump to footnote reference 9\">\u21a9\ufe0e<\/a><\/li><li id=\"7fd8fe66-bc05-463e-8663-b0f632bdc14f\">Hartung T. The (misleading) role of animal models in drug development. <em>Front Drug Discov.<\/em> 2024;4. doi:10.3389\/fddsv.2024.1355044 <a href=\"#7fd8fe66-bc05-463e-8663-b0f632bdc14f-link\" aria-label=\"Jump to footnote reference 10\">\u21a9\ufe0e<\/a><\/li><li id=\"e6490f1a-a45b-433d-89e3-cd4eb31e384d\">Kramer LA, Greek R. Human stakeholders and the use of animals in drug development. <em>Bus Soc Rev.<\/em> 2018;123(1):3-58. doi:10.1111\/basr.12134 <a href=\"#e6490f1a-a45b-433d-89e3-cd4eb31e384d-link\" aria-label=\"Jump to footnote reference 11\">\u21a9\ufe0e<\/a><\/li><li id=\"59be4d41-a8ef-4348-90fa-4acd928b8ec2\">Piesing M. How tech could spell the end of animals in drugs testing. <em>The Guardian<\/em>. https:\/\/www.theguardian.com\/science\/2014\/aug\/23\/tech-end-animals-drugs-testing. August 23, 2014. Accessed October 22, 2024 <a href=\"#59be4d41-a8ef-4348-90fa-4acd928b8ec2-link\" aria-label=\"Jump to footnote reference 12\">\u21a9\ufe0e<\/a><\/li><li id=\"718acde2-e758-4e15-beec-cd840b29235e\">Pulley JM, Jerome RN, Zaleski NM, et al. When enough is enough: decision criteria for moving a known drug into clinical testing for a new indication in the absence of preclinical efficacy data. <em>Assay Drug Dev Technol<\/em>. 2017;15(8):354-361. doi:10.1089\/adt.2017.821 <a href=\"#718acde2-e758-4e15-beec-cd840b29235e-link\" aria-label=\"Jump to footnote reference 13\">\u21a9\ufe0e<\/a><\/li><\/ol><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Si queremos que los limitados fondos p\u00fablicos se utilicen de manera responsable, se deben financiar estudios confiables y m\u00e9todos de investigaci\u00f3n que conduzcan a tratamientos eficaces para las enfermedades y protejan la salud humana y el ambiente. Desde hace tiempo existe evidencia de que los experimentos en animales est\u00e1n obstaculizando el desarrollo de tratamientos y&#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":"[{\"id\":\"d5a704ae-aa5e-4e89-89a6-3346b29df07a\",\"content\":\"Pound P, Bracken MB. Is animal research sufficiently evidence based to be a cornerstone of biomedical research? <em>BMJ<\\\/em>. 2014;348:g3387. doi:10.1136\\\/bmj.g3387\"},{\"id\":\"05cd0459-a65d-441e-b9a9-69d04bc57b1c\",\"content\":\"Strauss M. Americans are divided over the use of animals in scientific research. Pew Research Center. Accessed February 15, 2023. <a href=\\\"https:\\\/\\\/www.pewresearch.org\\\/fact-tank\\\/2018\\\/08\\\/16\\\/americans-are-divided-over-the-use-of-animals-in-scientific-research\\\/\\\">https:\\\/\\\/www.pewresearch.org\\\/fact-tank\\\/2018\\\/08\\\/16\\\/americans-are-divided-over-the-use-of-animals-in-scientific-research\\\/<\\\/a>\"},{\"id\":\"ee0979eb-1c14-4538-9a9f-98751c03c286\",\"content\":\"Newport F. Trends in U.S. adults\\u2019 acceptance of moral and values behaviors. Gallup.com. September 4, 2025. Accessed February 7, 2026. <a href=\\\"https:\\\/\\\/news.gallup.com\\\/opinion\\\/polling-matters\\\/694550\\\/trends-adults-acceptance-moral-values-behaviors.aspx\\\">https:\\\/\\\/news.gallup.com\\\/opinion\\\/polling-matters\\\/694550\\\/trends-adults-acceptance-moral-values-behaviors.aspx<\\\/a>\"},{\"id\":\"0156d275-0e45-42e0-b636-a96bb8e834e8\",\"content\":\"M\\u00fcller N. Phase-out planning for animal experimentation: a definition, an argument, and seven action points. <em>ALTEX<\\\/em>. 2024;41(2):260-272. doi:10.14573\\\/altex.2312041\"},{\"id\":\"d84b1ad1-b636-4aa6-8578-47f2bc55a6ba\",\"content\":\"U.S. Food and Drug Administration. FDA announces plan to phase out animal testing requirement for monoclonal antibodies and other drugs. FDA.gov. April 10, 2025. Accessed February 6, 2026. <a href=\\\"https:\\\/\\\/www.fda.gov\\\/news-events\\\/press-announcements\\\/fda-announces-plan-phase-out-animal-testing-requirement-monoclonal-antibodies-and-other-drugs\\\">https:\\\/\\\/www.fda.gov\\\/news-events\\\/press-announcements\\\/fda-announces-plan-phase-out-animal-testing-requirement-monoclonal-antibodies-and-other-drugs<\\\/a>\"},{\"id\":\"14d783e6-d5d8-4fc2-b465-703aa7c4ad26\",\"content\":\"National Institutes of Health. NIH to prioritize human-based research technologies. NIH.gov. April 29, 2025. Accessed February 6, 2026. <a href=\\\"https:\\\/\\\/www.nih.gov\\\/news-events\\\/news-releases\\\/nih-prioritize-human-based-research-technologies\\\">https:\\\/\\\/www.nih.gov\\\/news-events\\\/news-releases\\\/nih-prioritize-human-based-research-technologies<\\\/a>\"},{\"id\":\"f6041958-2972-4d4e-9d69-0168ef910c4a\",\"content\":\"Kime P. Cats and dogs will no longer be used in Navy research, Secretary says. Military.com. June 2, 2025. Accessed February 6, 2026. <a href=\\\"https:\\\/\\\/www.military.com\\\/daily-news\\\/2025\\\/06\\\/03\\\/cats-and-dogs-will-no-longer-be-used-navy-research-secretary-says.html\\\">https:\\\/\\\/www.military.com\\\/daily-news\\\/2025\\\/06\\\/03\\\/cats-and-dogs-will-no-longer-be-used-navy-research-secretary-says.html<\\\/a>\"},{\"id\":\"101c4c75-92b2-4cb2-8210-bfdafcc58cbd\",\"content\":\"Grimm D. Exclusive: CDC to end all monkey research. <em>Science<\\\/em>. September 21, 2025. Accessed February 6, 2026. <a href=\\\"https:\\\/\\\/www.science.org\\\/content\\\/article\\\/exclusive-cdc-end-all-monkey-research\\\">https:\\\/\\\/www.science.org\\\/content\\\/article\\\/exclusive-cdc-end-all-monkey-research<\\\/a>\"},{\"id\":\"d696f47d-8dbc-42bd-8897-8034adc21fe6\",\"content\":\"Meigs L, Smirnova L, Rovida C, Leist M, Hartung T. Animal testing and its alternatives\\u2014the most important omics is economics. <em>ALTEX<\\\/em>. 2018;35(3):275-305. doi:10.14573\\\/altex.1807041\"},{\"id\":\"7fd8fe66-bc05-463e-8663-b0f632bdc14f\",\"content\":\"Hartung T. The (misleading) role of animal models in drug development. <em>Front Drug Discov.<\\\/em> 2024;4. doi:10.3389\\\/fddsv.2024.1355044\"},{\"id\":\"e6490f1a-a45b-433d-89e3-cd4eb31e384d\",\"content\":\"Kramer LA, Greek R. Human stakeholders and the use of animals in drug development. <em>Bus Soc Rev.<\\\/em> 2018;123(1):3-58. doi:10.1111\\\/basr.12134\"},{\"id\":\"59be4d41-a8ef-4348-90fa-4acd928b8ec2\",\"content\":\"Piesing M. How tech could spell the end of animals in drugs testing. <em>The Guardian<\\\/em>. https:\\\/\\\/www.theguardian.com\\\/science\\\/2014\\\/aug\\\/23\\\/tech-end-animals-drugs-testing. August 23, 2014. Accessed October 22, 2024\"},{\"id\":\"718acde2-e758-4e15-beec-cd840b29235e\",\"content\":\"Pulley JM, Jerome RN, Zaleski NM, et al. When enough is enough: decision criteria for moving a known drug into clinical testing for a new indication in the absence of preclinical efficacy data. <em>Assay Drug Dev Technol<\\\/em>. 2017;15(8):354-361. doi:10.1089\\\/adt.2017.821\"}]"},"secton":[20],"class_list":["post-802","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Necesidad de un cambio de paradigma - Modernicemos la Investigaci\u00f3n YA<\/title>\n<meta name=\"description\" content=\"PETA Scientists&#039; comprehensive report on the use of animals in experimentation, testing, and education, and common-sense strategy for revitalizing the U.S. scientific enterprise to protect human health and the environment.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/science.peta.org\/es\/cambio-de-paradigma\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Necesidad de un cambio de paradigma - 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