{"id":29097,"date":"2026-05-06T13:59:46","date_gmt":"2026-05-06T13:59:46","guid":{"rendered":"https:\/\/www.futurismo.pt\/blog\/\/"},"modified":"2026-05-06T13:59:47","modified_gmt":"2026-05-06T13:59:47","slug":"do-dolphins-smell-scientific-fact-check","status":"publish","type":"post","link":"https:\/\/staging.futurismo.pt\/pt\/blog\/os-golfinhos-cheiram-mal-verificacao-de-factos-cientificos\/","title":{"rendered":"Os golfinhos cheiram? | Verifica\u00e7\u00e3o de factos cient\u00edficos"},"content":{"rendered":"<p class=\"has-text-align-left\">Os golfinhos s\u00e3o algumas das criaturas mais inteligentes do nosso planeta, mas ainda n\u00e3o sabemos muito sobre eles. Uma das perguntas que muitos bi\u00f3logos, ou apenas entusiastas do mundo marinho, t\u00eam \u00e9 se os golfinhos conseguem ou n\u00e3o cheirar. Este blogue tem como objetivo responder a esta pergunta e proporcionar uma compreens\u00e3o mais profunda destas majestosas criaturas marinhas, tanto aos leitores como aos cientistas.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/www.futurismo.pt\/tours\/whale-watching-in-ponta-delgada-sao-miguel-azores\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img fetchpriority=\"high\" decoding=\"async\" width=\"815\" height=\"250\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/12\/12.jpg\" alt=\"\" class=\"wp-image-35102\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/12.jpg 815w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/12-300x92.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/12-768x236.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/12-18x6.jpg 18w\" sizes=\"(max-width: 815px) 100vw, 815px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-sensory-adaptations-for-marine-animals-and-their-use\">Adapta\u00e7\u00f5es sensoriais dos animais marinhos e sua utiliza\u00e7\u00e3o<\/h2>\n\n\n\n<p>Os animais marinhos t\u00eam muitos tipos de sistemas sensoriais que variam consoante as esp\u00e9cies e que s\u00e3o cruciais para o sucesso da sua sobreviv\u00eancia. Alguns dos receptores sensoriais presentes nos animais aqu\u00e1ticos incluem a escuta passiva, a haptosence e o sistema de linha lateral. A ecolocaliza\u00e7\u00e3o \u00e9 tamb\u00e9m uma adapta\u00e7\u00e3o sensorial importante nos cet\u00e1ceos odontocetos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-variability-in-sensory-adaptations-across-habitats\">Variabilidade das adapta\u00e7\u00f5es sensoriais nos diferentes habitats<\/h3>\n\n\n\n<p>O grau em que cada esp\u00e9cie recorre a cada adapta\u00e7\u00e3o sensorial depende da sua estrat\u00e9gia de vida geral. Al\u00e9m disso, o habitat em que tendem a viver, como o oceano aberto ou as \u00e1guas costeiras, desempenha um papel significativo. As diferen\u00e7as entre \u00e1guas pouco profundas e profundas e entre \u00e1guas l\u00edmpidas e turvas tamb\u00e9m influenciam as suas adapta\u00e7\u00f5es sensoriais.<\/p>\n\n\n\n<p>A perce\u00e7\u00e3o sensorial ajuda um indiv\u00edduo a detetar objectos no seu ambiente f\u00edsico, incluindo alimentos, presas e predadores. Tamb\u00e9m ajuda a identificar sinais de comunica\u00e7\u00e3o e a discernir parceiros sociais. Por exemplo, os sentidos auditivos est\u00e3o relativamente bem desenvolvidos nos golfinhos e nas baleias, pelo que<br>podem ouvir os sinais de outros membros do seu grupo ou de potenciais companheiros, bem como de potenciais presas. Para al\u00e9m disso, as focas e os le\u00f5es-marinhos t\u00eam uma haptosence muito bem desenvolvida. Esta \u00e9 inferida atrav\u00e9s de longos e sens\u00edveis \"bigodes\" na sua face e permite-lhes detetar perturba\u00e7\u00f5es na \u00e1gua.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"968\" height=\"622\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/06\/image.jpg\" alt=\"O le\u00e3o-marinho das Gal\u00e1pagos mostra as suas longas vibrissas enquanto apanha sol\" class=\"wp-image-29102\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image.jpg 968w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-300x193.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-768x493.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-18x12.png 18w\" sizes=\"(max-width: 968px) 100vw, 968px\" \/><figcaption class=\"wp-element-caption\">Clark, 2016 | O le\u00e3o-marinho das Gal\u00e1pagos mostra as suas longas vibrissas enquanto apanha sol<\/figcaption><\/figure>\n<\/div>\n\n\n<p>A ecolocaliza\u00e7\u00e3o \u00e9 tamb\u00e9m uma adapta\u00e7\u00e3o bem conhecida e amplamente apreciada, da qual muitos citas dependem para a dete\u00e7\u00e3o de presas e para a navega\u00e7\u00e3o no seu ambiente. Esta forma de rece\u00e7\u00e3o sensorial \u00e9 extremamente fascinante. Demonstra uma das muitas adapta\u00e7\u00f5es evolutivas inconceb\u00edveis que os mam\u00edferos sofreram ao longo dos milh\u00f5es de anos desde que voltaram a entrar nos ambientes aqu\u00e1ticos. A ecolocaliza\u00e7\u00e3o envolve a emiss\u00e3o de breves impulsos sonoros, ou cliques, e depois a escuta dos ecos que se fazem ouvir para criar um mapa auditivo do seu ambiente.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"611\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-1-1024x611.jpg\" alt=\"image-1.jpg\" class=\"wp-image-29103\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-1-1024x611.jpg 1024w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-1-300x179.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-1-768x458.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-1-18x12.png 18w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-1.jpg 1452w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Lubis, 2016 | Diagrama que mostra a mec\u00e2nica de ecolocaliza\u00e7\u00e3o dos golfinhos roazes. As linhas vermelhas s\u00f3lidas representam os estalidos libertados pelo golfinho, e as linhas vermelhas pontilhadas representam o eco dos estalidos que ricocheteiam no peixe e s\u00e3o interpretados pelo ouvido interno do golfinho<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-olfactory-of-marine-mammals\">Olfato dos mam\u00edferos marinhos<\/h2>\n\n\n\n<p>Ent\u00e3o, como \u00e9 que os animais marinhos cheiram? Bem, \u00e9 um pouco diferente para os animais aqu\u00e1ticos do que para os organismos terrestres. Nos organismos terrestres, os odores transportados pelo ar dissolvem-se no muco que cobre a cavidade nasal e ligam-se a prote\u00ednas especiais que enviam sinais para o c\u00e9rebro atrav\u00e9s do nervo craniano I (NC I). Isto permite o olfato. No entanto, o NC I tamb\u00e9m parece estar ativo em resposta a est\u00edmulos aqu\u00e1ticos, demonstrando que a sensa\u00e7\u00e3o de cheiro \u00e9 poss\u00edvel debaixo de \u00e1gua para algumas esp\u00e9cies. Uma vez que a \u00e1gua \u00e9 mais densa do que o ar, pode transportar subst\u00e2ncias qu\u00edmicas mais longe do que o ar, permitindo que os est\u00edmulos qu\u00edmicos (cheiros) viajem a grandes dist\u00e2ncias.<\/p>\n\n\n\n<p>Alguns exemplos de animais marinhos capazes de cheirar incluem os botos, as misticetas, os peixes cartilag\u00edneos e muitos outros organismos que talvez ainda n\u00e3o tenhamos descoberto! No entanto, as misticetas t\u00eam interesse pelo facto de s\u00f3 conseguirem detetar odores no ar e n\u00e3o na \u00e1gua. Isto significa que os seus sistemas olfactivos n\u00e3o s\u00e3o muito \u00fateis durante as actividades di\u00e1rias, mas t\u00eam de ser utilizados se quiserem cheirar.<\/p>\n\n\n\n<p>E, claro, os tubar\u00f5es t\u00eam um olfato muito apurado, que lhes permite localizar a presa a centenas de metros de dist\u00e2ncia. Os qu\u00edmicos libertados pelas carca\u00e7as de baleia em decomposi\u00e7\u00e3o ou pelo chum de peixe podem, por isso, ser sentidos pelos tubar\u00f5es, indicando que h\u00e1 uma refei\u00e7\u00e3o dispon\u00edvel. Os peixes cartilag\u00edneos t\u00eam dois \u00f3rg\u00e3os especiais na cabe\u00e7a que podem detetar os qu\u00edmicos na \u00e1gua, onde a \u00e1gua flui para o nariz do peixe.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"976\" height=\"536\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-2.jpg\" alt=\"Imagem de um tubar\u00e3o dos recifes com a narina, ou nare, marcada\" class=\"wp-image-29104\" style=\"width:839px;height:auto\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-2.jpg 976w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-2-300x165.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-2-768x422.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-2-18x10.png 18w\" sizes=\"(max-width: 976px) 100vw, 976px\" \/><figcaption class=\"wp-element-caption\">Ocean First Institute, 2023 | Imagem de um tubar\u00e3o de recife com a narina, ou nare, rotulada<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u00c0 medida que o peixe avan\u00e7a, a \u00e1gua que passa pelo seu nariz cria uma diferen\u00e7a de press\u00e3o,<br>que o ajuda a detetar cheiros na \u00e1gua.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-chemo-sensory-in-dolphins-do-dolphins-actually-smell\">Sensorialidade da quimioterapia nos golfinhos: Os golfinhos cheiram de facto?<\/h2>\n\n\n\n<p>Os cet\u00e1ceos perderam um n\u00famero significativo dos seus receptores olfactivos ao longo da evolu\u00e7\u00e3o e os odontocetos, em particular, registaram a maior perda destes \u00f3rg\u00e3os dos sentidos, incluindo o trato olfativo, o bolbo e o CN I. Assim, para simplificar, os golfinhos n\u00e3o conseguem cheirar da mesma forma que os peixes cartilag\u00edneos conseguem cheirar odores aqu\u00e1ticos, mas t\u00eam o seu pr\u00f3prio mecanismo para interpretar estes cheiros.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-gustation-in-dolphins-how-dolphins-taste\">Gusta\u00e7\u00e3o nos golfinhos: como os golfinhos sentem o sabor<\/h2>\n\n\n\n<p>Os golfinhos t\u00eam um terceiro sentido qu\u00edmico, o \u00f3rg\u00e3o vomeronasal, localizado na base do nariz. Embora os seus ductos se abram atr\u00e1s dos incisivos na boca, o \u00f3rg\u00e3o pode sentir est\u00edmulos no palato e essencialmente \u201csaborear\u201d esses cheiros atrav\u00e9s de impulsos transmitidos via CN V da cavidade oral para o c\u00e9rebro. Esta perce\u00e7\u00e3o \u00e9 agora referida como quase-olfa\u00e7\u00e3o e pode oferecer o elo perdido que os investigadores t\u00eam procurado na rece\u00e7\u00e3o quimiossensorial dos golfinhos.<\/p>\n\n\n\n<p>A investiga\u00e7\u00e3o demonstrou que os golfinhos conseguem interpretar (ou provar) sabores azedos, amargos e salgados, o que lhes permite detetar v\u00e1rios qu\u00edmicos na \u00e1gua libertados pelas suas presas, predadores ou companheiros.<br>(como a urina e as fezes). Al\u00e9m disso, foi demonstrado que os golfinhos s\u00e3o capazes de distinguir entre diferentes sabores e de se aproximar de uma fonte de alimento preferida, o que constitui outro exemplo de \u201csentir os cheiros\u201d. \u00c9 tamb\u00e9m prov\u00e1vel que os golfinhos s\u00f3 consigam detetar esses qu\u00edmicos e sabores a curta dist\u00e2ncia, o que os torna \u00fateis apenas em situa\u00e7\u00f5es de proximidade e n\u00e3o a dist\u00e2ncias maiores.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"599\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-3-1024x599.jpg\" alt=\"Golfinho roaz-corvineiro\" class=\"wp-image-29105\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-3-1024x599.jpg 1024w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-3-300x176.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-3-768x449.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-3-18x12.png 18w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/06\/image-3.jpg 1220w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">American Ocean 2023 <a class=\"wpil_keyword_link\" href=\"https:\/\/futurismo.pt\/species\/bottlenose-dolphin\/\" target=\"_blank\" rel=\"noopener\" title=\"Golfinho roaz-corvineiro\" data-wpil-keyword-link=\"linked\" data-wpil-monitor-id=\"386\">Golfinho roaz-corvineiro<\/a><\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclus\u00e3o<\/h2>\n\n\n\n<p>Em conclus\u00e3o, a resposta \u00e0 quest\u00e3o de saber se os golfinhos conseguem cheirar n\u00e3o \u00e9 um \"sim\" ou \"n\u00e3o\" claro e definitivo. Pelo contr\u00e1rio, trata-se de uma \u00e1rea de investiga\u00e7\u00e3o marinha muito complicada e n\u00e3o muito bem compreendida, que requer mais investiga\u00e7\u00e3o para obter dados s\u00f3lidos. O que sabemos \u00e9 que, onde os golfinhos t\u00eam falta de olfato, compensam-no com os seus sentidos orais. O sistema sensorial destas criaturas majestosas continua a fascinar-nos e, \u00e0 medida que a tecnologia e a investiga\u00e7\u00e3o avan\u00e7am, esperamos descobrir mais respostas sobre os nossos amigos aqu\u00e1ticos.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.futurismo.pt\/tours\/whale-watching-in-ponta-delgada-sao-miguel-azores\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"815\" height=\"250\" src=\"https:\/\/www.futurismo.pt\/wp-content\/uploads\/2024\/12\/7.jpg\" alt=\"\" class=\"wp-image-35096\" srcset=\"https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/7.jpg 815w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/7-300x92.jpg 300w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/7-768x236.jpg 768w, https:\/\/staging.futurismo.pt\/wp-content\/uploads\/2024\/12\/7-18x6.jpg 18w\" sizes=\"(max-width: 815px) 100vw, 815px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-references\">Refer\u00eancias<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Bouchard, B., Barnagaud, J. Y., Verborgh, P., Gauffier, P., Campagna, S., &amp; C\u00e9l\u00e9rier, A. (2021). Um estudo de campo dos sentidos qu\u00edmicos em golfinhos roazes e baleias-piloto. The Anatomical Record, 305(3), 668-679. https:\/\/doi.org\/10.1002\/ar.24703<\/li>\n\n\n\n<li>Os tubar\u00f5es conseguem mesmo cheirar uma gota de sangue a uma milha de dist\u00e2ncia? Instituto Ocean First. (2023). Recuperado em 8 de maio de 2023, de https:\/\/www.oceanfirstinstitute.org\/what-we-do\/research\/citizen-science-project\/<\/li>\n\n\n\n<li>Clark, S. (2016, 21 de agosto). Os vagabundos da praia das Gal\u00e1pagos. Nos passos de Darwin. Recuperado em 8 de maio de 2023 de http:\/\/darwinsfootsteps.com\/the-beach-bums-of-the-galapagos\/#prettyPhoto<\/li>\n\n\n\n<li>Kishida, T., Thewissen, J. G. M., Hayakawa, T., Imai, H., &amp; Agata, K. (2015). Adapta\u00e7\u00e3o aqu\u00e1tica e a evolu\u00e7\u00e3o do olfato e do paladar em baleias. Zoological Letters, 1(1). https:\/\/doi.org\/10.1186\/s40851-014-0002-z<\/li>\n\n\n\n<li>Klimley, A. P. (2012). Genetics of sharks, Skates, and Rays (Gen\u00e9tica de tubar\u00f5es, raias e mam\u00edferos). Biology of Sharks and Their Relatives, 503-520. https:\/\/doi.org\/10.1201\/b11867-25<\/li>\n\n\n\n<li>Kremers, D., C\u00e9l\u00e9rier, A., Schaal, B., Campagna, S., Trabalon, M., B\u00f6ye, M., Hausberger, M., &amp; Lemasson, A. (2016). Perce\u00e7\u00e3o sensorial em cet\u00e1ceos: Parte II - abordagens experimentais promissoras para estudar a quimiorrece\u00e7\u00e3o em golfinhos. Frontiers in Ecology and Evolution, 4. https:\/\/doi.org\/10.3389\/fevo.2016.00050<\/li>\n\n\n\n<li>Kremers, D., C\u00e9l\u00e9rier, A., Schaal, B., Campagna, S., Trabalon, M., B\u00f6ye, M., Hausberger, M., &amp; Lemasson, A. (2016). Perce\u00e7\u00e3o sensorial em cet\u00e1ceos: Parte I - conhecimento atual sobre os sentidos dos golfinhos como esp\u00e9cie representativa. Frontiers in Ecology and Evolution, 4. https:\/\/doi.org\/10.3389\/fevo.2016.00049<\/li>\n\n\n\n<li>Lubis , M. Z. (2016). Behaviour and Echolocation of Male Indo-Pacific Bottlenose Dolphins (pp. 21-27). LAP LAMBERT Academic Publishing. https:\/\/doi.org\/10.13140\/RG.2.1.4603.7520<\/li>\n\n\n\n<li>Perrin, W. F., W\u00fcrsig Bernd G., &amp; Thewissen, J. G. M. (2002). Encyclopedia of Marine Mammals (segunda). Academic Press.<\/li>\n\n\n\n<li>O que \u00e9 que os golfinhos roazes comem? Oceanos americanos. (2021, fevereiro 18). Recuperado em 8 de maio de 2023, de https:\/\/www.americanoceans.org\/facts\/what-do-bottlenose-dolphins-eat\/<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Dolphins are some of the most intelligent creatures on our planet, yet we still don\u2019t know a lot about them. One question many biologists, or just average marine enthusiasts, have is whether dolphins can smell. This blog post aims to answer this question and provide readers and scientists alike with a deeper understanding of these [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":5720,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-29097","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wildlife"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Do Dolphins Smell? | Scientific Fact Check [2026]\ud83d\udc2c\ud83d\udd2c<\/title>\n<meta name=\"description\" content=\"Do Dolphins Smell? Discover how these mammals perceive their environment and uncover the complexities behind their sense of smell.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/staging.futurismo.pt\/pt\/blog\/os-golfinhos-cheiram-mal-verificacao-de-factos-cientificos\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Do Dolphins Smell? | Scientific Fact Check\" \/>\n<meta property=\"og:description\" content=\"Do Dolphins Smell? 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