{"id":19624,"date":"2025-09-16T07:45:00","date_gmt":"2025-09-16T10:45:00","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=19624"},"modified":"2025-09-17T20:09:41","modified_gmt":"2025-09-17T23:09:41","slug":"evolucao-reversa-utopia-ou-realidade-atavismo","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/evolucao-reversa-utopia-ou-realidade-atavismo\/","title":{"rendered":"Evolu\u00e7\u00e3o Reversa: utopia ou realidade?"},"content":{"rendered":"\n<p><span style=\"color: #000000; font-size: 14pt;\"><span style=\"color: rgb(0, 0, 0); font-size: 14pt;\"><span style=\"color: rgb(0, 0, 0); font-size: 14pt;\"><strong><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><span style=\"color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong><strong>Evolu\u00e7\u00e3o Reversa<\/strong><\/strong><\/span><\/span><\/span><\/span><\/span><\/strong><\/span><\/span><\/span>:<span style=\"color: #000000; font-size: 14pt;\"><a href=\"lorestas:\"> <\/a>a evolu\u00e7\u00e3o n\u00e3o segue apenas caminhos de inova\u00e7\u00e3o. Em certos casos, esp\u00e9cies readquirem tra\u00e7os que haviam desaparecido em sua linhagem. Esse fen\u00f4meno desafia a no\u00e7\u00e3o de que a hist\u00f3ria da vida caminha sem possibilidade de retorno. Mas ser\u00e1 que o termo \u00e9 correto?<\/span> <\/p>\n\n\n\n<figure class=\"wp-block-image alignright size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"74\" height=\"83\" data-attachment-id=\"18164\" data-permalink=\"https:\/\/biologo.com.br\/bio\/sylvia-earle-na-luta-pelos-oceanos\/original-biologo-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/05\/original-biologo-2.jpg?fit=74%2C83&amp;ssl=1\" data-orig-size=\"74,83\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"original-biologo (2)\" data-image-description=\"&lt;p&gt;artigo original www.biologo.com.br \u00a9 todos os direitos reservados&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/05\/original-biologo-2.jpg?fit=74%2C83&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/05\/original-biologo-2.jpg?resize=74%2C83&#038;ssl=1\" alt=\"Artigo original www.biologo.com.br \u00a9 todos os direitos reservados\" class=\"wp-image-18164\"\/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\"><span style=\"font-family: 'courier new', courier, monospace; font-size: 24pt; color: #000000;\"><strong><span style=\"font-size: 24pt; font-family: 'courier new', courier, monospace; color: #000000;\"><strong>Evolu\u00e7\u00e3o Reversa: <\/strong><\/span><\/strong><\/span><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000;\"><strong><span style=\"font-size: 24pt;\"><span style=\"font-size: 12pt;\"><strong><strong><strong><strong>utopia ou realidade?<\/strong><\/strong><\/strong><\/strong><\/span><\/span><\/strong><\/span><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span><\/h1>\n\n\n\n<p><span style=\"font-size: 8pt; color: #000000;\"><span style=\"font-size: 8pt; color: #000000;\"><strong>17\/9\/2025<\/strong> ::\u00a0 <strong>Marco Pozzana<\/strong>, bi\u00f3logo<\/span><\/span><\/p>\n\n\n\n<p class=\"has-drop-cap has-black-color has-text-color has-link-color has-medium-font-size wp-elements-eeabd6eaaec761b7b77c52d0d00ec6fe\"><span><span style=\"font-weight: bold; font-family: &quot;courier new&quot;, courier, monospace; font-size: 14pt;\">A<\/span><\/span> chamada \u201cevolu\u00e7\u00e3o reversa\u201d n\u00e3o deve ser entendida como um retorno literal ao passado, mas sim como a reemerg\u00eancia de caracter\u00edsticas ancestrais que j\u00e1 estavam presentes no genoma e podem ser reativadas sob certas press\u00f5es ambientais. <\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-19e184b8392fd702510b76de42ae2497\">Em primeiro lugar, o termo \u00e9 cientificamente incorreto. O atavismo \u00e9 frequentemente mal interpretado como &#8220;evolu\u00e7\u00e3o reversa&#8221;, mas \u00e9 fundamental entender a diferen\u00e7a:&nbsp;<strong>atavismo<\/strong> \u00e9 a manifesta\u00e7\u00e3o de um tra\u00e7o ancestral espec\u00edfico e pontual, devido \u00e0 reativa\u00e7\u00e3o de genes dormentes. J\u00e1  a termo equivocado &#8220;evolu\u00e7\u00e3o reversa&#8221;<strong> <\/strong>implica um processo direcionado de retorno de uma esp\u00e9cie inteira a um estado anterior, o que n\u00e3o \u00e9 compat\u00edvel com a teoria da evolu\u00e7\u00e3o.<\/p>\n\n\n\n<figure class=\"wp-block-image alignright size-full\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Cherry-throated-Tanager-Nemosia-rourei.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"82\" height=\"121\" data-attachment-id=\"19175\" data-permalink=\"https:\/\/biologo.com.br\/bio\/saira-apunhalada\/cherry-throated-tanager-nemosia-rourei\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Cherry-throated-Tanager-Nemosia-rourei.jpg?fit=82%2C121&amp;ssl=1\" data-orig-size=\"82,121\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Cherry-throated Tanager Nemosia rourei\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Cherry-throated-Tanager-Nemosia-rourei.jpg?fit=82%2C121&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Cherry-throated-Tanager-Nemosia-rourei.jpg?resize=82%2C121&#038;ssl=1\" alt=\"\" class=\"wp-image-19175\"\/><\/a><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/evolucao-dos-vertebrados\/\">Evolu\u00e7\u00e3o dos Vertebrados<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/simbiose-aliancas-da-harmonia-oculta\/\">Simbiose \u2013 alian\u00e7as da harmonia oculta<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/evolucao-dos-insetos\/\">Evolu\u00e7\u00e3o dos Insetos<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/os-ultimos-gigantes-o-colapso-da-megafauna\/\">Os \u00daltimos Gigantes<\/a><\/li>\n<\/ul>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-6ade6d76ca2adf23b3338c5246073030\">Contudo, estudos em biologia evolutiva mostram que o fen\u00f4meno do <strong>atavismo <\/strong>\u00e9 real e documentado em diversos organismos. Por exemplo, casos de readapta\u00e7\u00e3o de aves aqu\u00e1ticas a ambientes terrestres (Claramunt &amp; Cracraft, 2015, <em>PNAS<\/em>) e a reativa\u00e7\u00e3o de genes dent\u00e1rios em aves modernas (Harris et al., 2006, <em>PNAS<\/em>) indicam que estruturas aparentemente perdidas podem, em condi\u00e7\u00f5es espec\u00edficas, reaparecer.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-2e1c3a6c71b243bce88f537bedbe80b4\">No entanto, a revers\u00e3o nunca \u00e9 completa, pois a hist\u00f3ria evolutiva de uma esp\u00e9cie acumula mudan\u00e7as irrevers\u00edveis. Assim, n\u00e3o se trata de uma utopia, mas de uma realidade pontual, limitada pela biologia do organismo e pelas condi\u00e7\u00f5es ecol\u00f3gicas.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" style=\"border-radius:100px\">\n<p class=\"has-medium-font-size\">\u201cA investiga\u00e7\u00e3o de atavismos fornece informa\u00e7\u00f5es cruciais sobre como a evolu\u00e7\u00e3o atua ao modificar programas de desenvolvimento j\u00e1 existentes.\u201d (Carroll, 2005, <em>Infinitas Formas de Grande Beleza<\/em>).<\/p>\n<\/blockquote>\n\n\n\n<!--more-->\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><strong><strong><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000; font-size: 24pt;\"><strong><span style=\"font-family: 'courier new', courier, monospace; color: #000000;\"><strong><span style=\"font-size: 24pt;\"><span style=\"font-size: 12pt;\"><strong><strong><strong><strong>Quando esp\u00e9cies readquirem caracter\u00edsticas ancestrais perdidas &#8211; atavismo<\/strong><\/strong><\/strong><\/strong><\/span><\/span><\/strong><\/span><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/strong><\/span> <\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-e7d34fe8c35d4d3d4b11aa7ef8016bbc\">A ideia de que a evolu\u00e7\u00e3o segue um caminho linear, sem retorno, foi durante muito tempo predominante. No entanto, a biologia moderna mostra que a realidade \u00e9 mais complexa e cheia de surpresas. Entre essas surpresas est\u00e1 o atavismo, fen\u00f4meno em que esp\u00e9cies readquirem caracter\u00edsticas ancestrais perdidas ao longo de sua hist\u00f3ria evolutiva.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-1d0b61fa44e581c8ee845d62981eebb4\">O que ocorre, na realidade, \u00e9 a reativa\u00e7\u00e3o de potenciais gen\u00e9ticos que permanecem latentes. Genes que controlavam caracter\u00edsticas antigas podem ser silenciados, mas n\u00e3o necessariamente eliminados. Assim, sob press\u00f5es ambientais espec\u00edficas, eles podem voltar a ser expressos.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-a2a53b13b5d86e58e4becc41399e6193\">Essa possibilidade desafia a no\u00e7\u00e3o tradicional da chamada \u201cLei de Dollo\u201d, formulada no s\u00e9culo XIX por Louis Dollo, segundo a qual a evolu\u00e7\u00e3o seria irrevers\u00edvel. Dollo argumentava que, uma vez perdida, uma estrutura complexa n\u00e3o poderia reaparecer exatamente da mesma forma. Entretanto, estudos recentes mostram que certas condi\u00e7\u00f5es gen\u00e9ticas e ambientais podem favorecer o retorno de tra\u00e7os ancestrais.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span><strong style=\"color: rgb(0, 0, 0); font-family: &quot;courier new&quot;, courier, monospace; font-size: 14pt; font-weight: bold;\">Exemplos de a<\/strong><\/span><strong style=\"color: rgb(0, 0, 0); font-family: &quot;courier new&quot;, courier, monospace; font-size: 14pt; font-weight: bold;\">tavismo<\/strong><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-3a9c3cc7daafb3abdd145f0f6058edee\">Um exemplo not\u00e1vel desse processo \u00e9 encontrado em anf\u00edbios. Certas esp\u00e9cies de r\u00e3s que haviam perdido dentes mandibulares durante milh\u00f5es de anos voltaram a apresent\u00e1-los em grupos modernos, como o g\u00eanero <em>Gastrotheca<\/em> (Wiens, 2011). Essa recupera\u00e7\u00e3o indica que o aparato gen\u00e9tico n\u00e3o havia sido totalmente perdido, mas apenas suprimido.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"534\" data-attachment-id=\"19651\" data-permalink=\"https:\/\/biologo.com.br\/bio\/evolucao-reversa-utopia-ou-realidade-atavismo\/gastrotheca-cornuta-horned-marsupial-frog\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?fit=1536%2C1024&amp;ssl=1\" data-orig-size=\"1536,1024\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Gastrotheca cornuta &amp;#8211; Horned Marsupial Frog\" data-image-description=\"&lt;p&gt;Um exemplo not\u00e1vel desse processo \u00e9 encontrado em anf\u00edbios. Certas esp\u00e9cies de r\u00e3s que haviam perdido dentes mandibulares durante milh\u00f5es de anos voltaram a apresent\u00e1-los em grupos modernos, como o g\u00eanero Gastrotheca (Wiens, 2011). Essa recupera\u00e7\u00e3o indica que o aparato gen\u00e9tico n\u00e3o havia sido totalmente perdido, mas apenas suprimido. Gastrotheca cornuta &amp;#8211; Horned Marsupial Frog&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Gastrotheca cornuta&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?fit=800%2C534&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?resize=800%2C534&#038;ssl=1\" alt=\"Gastrotheca cornuta - Evolu\u00e7\u00e3o Reversa: utopia ou realidade? - Atavismo - Bi\u00f3logo\" class=\"wp-image-19651\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?resize=1024%2C683&amp;ssl=1 1024w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?resize=150%2C100&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/Gastrotheca-cornuta-Horned-Marsupial-Frog.jpg?w=1536&amp;ssl=1 1536w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\"><em><strong>Gastrotheca cornuta<\/strong><\/em>. <a href=\"https:\/\/www.flickr.com\/photos\/briangratwicke\/\" target=\"_blank\" rel=\"noreferrer noopener\">Brian Gratwicke<\/a><\/figcaption><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-17e0a0da1aa42c8c66a0ee633857be50\">Outro caso interessante envolve aves. As aves descendem de dinossauros ter\u00f3podes e, em sua trajet\u00f3ria evolutiva, perderam dentes. Contudo, experimentos realizados em laborat\u00f3rio mostraram que, ao manipular a express\u00e3o de determinados genes, \u00e9 poss\u00edvel induzir o crescimento de estruturas dent\u00e1rias em embri\u00f5es de galinhas (Chen et al., 2000). Esse resultado sugere que a informa\u00e7\u00e3o gen\u00e9tica para a forma\u00e7\u00e3o de dentes ainda est\u00e1 presente, embora inativa.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-5e358cbab06ad003c26cf6ad80dac949\">O atavismo tamb\u00e9m pode ser observado em insetos. Escaravelhos do g\u00eanero <em>Tribolium<\/em> readquiriram asas funcionais ap\u00f3s linhagens ancestrais terem perdido a capacidade de voo (Whiting et al., 2003). Tal revers\u00e3o s\u00f3 foi poss\u00edvel porque os genes respons\u00e1veis pelo desenvolvimento das asas n\u00e3o haviam desaparecido completamente, mas permaneciam ocultos no genoma.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-6daefe8f0d4f4ea579ecf071afbc1d67\">Al\u00e9m disso, o fen\u00f4meno n\u00e3o se restringe a estruturas anat\u00f4micas. Certas fun\u00e7\u00f5es metab\u00f3licas tamb\u00e9m podem ressurgir. Em popula\u00e7\u00f5es de leveduras, por exemplo, j\u00e1 foi registrada a readapta\u00e7\u00e3o de vias metab\u00f3licas ancestrais ap\u00f3s mudan\u00e7as dr\u00e1sticas no ambiente (Blount et al., 2008). Isso refor\u00e7a a ideia de que a evolu\u00e7\u00e3o n\u00e3o \u00e9 apenas inova\u00e7\u00e3o, mas tamb\u00e9m reutiliza\u00e7\u00e3o de antigas ferramentas biol\u00f3gicas.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" style=\"border-radius:88px\">\n<p class=\"has-white-color has-text-color has-link-color has-medium-font-size wp-elements-8e50fc48951459d7ea8ec8f45e5659b8\"><strong>\u201cCaracter\u00edsticas at\u00e1vicas raramente aparecem, mas quando surgem fornecem evid\u00eancias poderosas da hist\u00f3ria evolutiva compartilhada entre os organismos.\u201d <\/strong>(<a href=\"https:\/\/www.hup.harvard.edu\/books\/9780674639416\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Gould<\/strong>, 1977, <em>Ontogeny and Phylogeny<\/em><\/a>).<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\"><strong><span style=\"color: #000000; font-family: courier new,courier,monospace; font-size: 14pt;\"><strong><span style=\"color: #000000;\"><strong><strong><strong>Limites e relev\u00e2ncia do atavismo <\/strong><\/strong><\/strong><\/span><\/strong><\/span><\/strong> <\/h4>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-adb1204d822593adccbea139f7279c9d\">Contudo, h\u00e1 limites para esse retorno. Quanto maior o tempo decorrido desde a perda de uma caracter\u00edstica, menor a chance de que os genes relacionados permane\u00e7am preservados. Muitas vezes, muta\u00e7\u00f5es acumuladas ou dele\u00e7\u00f5es gen\u00f4micas tornam imposs\u00edvel a recupera\u00e7\u00e3o completa da fun\u00e7\u00e3o ancestral. Assim, a revers\u00e3o ocorre mais facilmente em caracter\u00edsticas recentes do que em tra\u00e7os muito antigos.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-83a21af4ce0721c950587312e86fb07e\">Outro aspecto relevante \u00e9 a diferen\u00e7a entre revers\u00e3o fenot\u00edpica e revers\u00e3o gen\u00e9tica. Em alguns casos, o organismo pode exibir uma caracter\u00edstica semelhante \u00e0 do ancestral, mas alcan\u00e7ada por vias gen\u00e9ticas distintas. Isso significa que a evolu\u00e7\u00e3o reversa nem sempre \u00e9 um \u201cretorno exato\u201d, mas uma converg\u00eancia que resulta em apar\u00eancia semelhante ao passado.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-bf010a6dd8104500646fad69c714377b\">Do ponto de vista evolutivo, esse fen\u00f4meno mostra a import\u00e2ncia da plasticidade gen\u00e9tica. O genoma \u00e9 um reservat\u00f3rio din\u00e2mico, capaz de armazenar informa\u00e7\u00f5es antigas que podem ser reativadas diante de novas press\u00f5es seletivas. Isso amplia a compreens\u00e3o da evolu\u00e7\u00e3o n\u00e3o como uma linha reta, mas como uma rede cheia de idas e vindas.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" data-attachment-id=\"19650\" data-permalink=\"https:\/\/biologo.com.br\/bio\/evolucao-reversa-utopia-ou-realidade-atavismo\/atavismo-evolucao-reversa\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?fit=1200%2C675&amp;ssl=1\" data-orig-size=\"1200,675\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"atavismo-evolucao-reversa\" data-image-description=\"&lt;p&gt;Evolu\u00e7\u00e3o Reversa: a evolu\u00e7\u00e3o n\u00e3o segue apenas caminhos de inova\u00e7\u00e3o. Em certos casos, esp\u00e9cies readquirem tra\u00e7os que haviam desaparecido em sua linhagem. Esse fen\u00f4meno desafia a no\u00e7\u00e3o de que a hist\u00f3ria da vida caminha sem possibilidade de retorno. Mas ser\u00e1 que o termo \u00e9 correto?&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;O atavismo em humanos \u00e9 o reaparecimento de caracter\u00edsticas ancestrais que estavam ausentes nas gera\u00e7\u00f5es recentes, devido \u00e0 reativa\u00e7\u00e3o de genes que se tornaram inativos ao longo da evolu\u00e7\u00e3o. Exemplos comuns incluem mamilos extras e a presen\u00e7a de um &amp;#8220;rabo&amp;#8221; (uma pequena proemin\u00eancia na base da coluna vertebral), que s\u00e3o manifesta\u00e7\u00f5es de tra\u00e7os presentes nos nossos antepassados. &lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Evolu\u00e7\u00e3o Reversa: utopia ou realidade?\" class=\"wp-image-19650\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/09\/atavismo-evolucao-reversa.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\">O atavismo em humanos ocorre ocasionalmente. Exemplos comuns incluem mamilos extras e a presen\u00e7a de um &#8220;rabo&#8221; (uma pequena proemin\u00eancia na base da coluna vertebral), que s\u00e3o manifesta\u00e7\u00f5es de tra\u00e7os presentes nos nossos antepassados. <\/figcaption><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-58a6aff64dd45507081c981a81b34256\">Ademais, os casos de atavismo possuem implica\u00e7\u00f5es profundas para a biologia evolutiva. Eles sugerem que a trajet\u00f3ria da vida na Terra \u00e9 mais male\u00e1vel do que se supunha, e que a hist\u00f3ria evolutiva de uma esp\u00e9cie pode ser parcialmente reescrita em resposta a mudan\u00e7as ambientais.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong><span style=\"color: #000000; font-family: courier new,courier,monospace; font-size: 14pt;\"><strong><span style=\"color: #000000;\"><strong><strong><strong>Considera\u00e7\u00f5es finais<\/strong><\/strong><\/strong><\/span><\/strong><\/span><\/strong><\/h5>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-28f140467f96bba1f682b4351b8c307c\">Do ponto de vista pr\u00e1tico, esse entendimento pode iluminar pesquisas em biotecnologia e medicina. A reativa\u00e7\u00e3o de genes antigos pode ajudar a compreender o desenvolvimento de malforma\u00e7\u00f5es cong\u00eanitas ou at\u00e9 mesmo abrir caminhos para terapias regenerativas baseadas em potenciais gen\u00e9ticos adormecidos.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-33aee87aaa1a9dec8902b39ecd8224ac\">Por fim, o atavismo revela que o passado biol\u00f3gico n\u00e3o desaparece por completo. Vest\u00edgios gen\u00f4micos funcionam como arquivos escondidos, prontos para serem lidos novamente em determinadas condi\u00e7\u00f5es. Assim, a biologia contempor\u00e2nea mostra que a lei da irreversibilidade n\u00e3o \u00e9 absoluta, mas sim uma tend\u00eancia sujeita a exce\u00e7\u00f5es.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-970fafa40d8709271b22cdaa69b72cae\">Em conclus\u00e3o,  o atavismo reversa nos lembra que a vida \u00e9 marcada pela imprevisibilidade e pela resili\u00eancia. A capacidade de readquirir tra\u00e7os perdidos desafia dogmas, abre novos horizontes de pesquisa e refor\u00e7a a vis\u00e3o da evolu\u00e7\u00e3o como um processo flex\u00edvel e criativo. Em vez de uma estrada de m\u00e3o \u00fanica, a evolu\u00e7\u00e3o se assemelha a um labirinto, no qual antigas portas podem ser reabertas quando o ambiente exige.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h6 class=\"wp-block-heading\"><span style=\"font-size: 10pt;\"><strong><strong style=\"font-family: &quot;courier new&quot;, courier, monospace; font-size: 12pt;\">Fontes e refer\u00eancias:<\/strong><\/strong><\/span><\/h6>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-55fab21b45fb51b61b23df39ddcc69e5\">Blount, Z. D., Borland, C. Z., &amp; Lenski, R. E. (2008). <a href=\"https:\/\/www.pnas.org\/doi\/10.1073\/pnas.0803151105\" target=\"_blank\" rel=\"noreferrer noopener\">Historical contingency and the evolution of a key innovation in an experimental population of <em>Escherichia coli<\/em><\/a>. <em>Proceedings of the National Academy of Sciences<\/em>, 105(23), 7899-7906.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-e40640b485f3a1ff500adebe12ed4ad3\">Chen, Y., Zhang, Y., Jiang, T. X., Barlow, A. J., St Amand, T. R., Hu, Y., &#8230; &amp; Chuong, C. M. (2000). <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/10954731\/\" target=\"_blank\" rel=\"noreferrer noopener\">Conservation of early odontogenic signaling pathways in Aves<\/a>. <em>Proceedings of the National Academy of Sciences<\/em>, 97(18), 10044-10049. DOI:\u00a0<a href=\"https:\/\/doi.org\/10.1073\/pnas.160245097\" target=\"_blank\" rel=\"noreferrer noopener\">10.1073\/pnas.160245097<\/a><\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-d17ede485b395c654c9b1b57d4bafe14\">Whiting, M. F., Bradler, S., &amp; Maxwell, T. (2003). <a href=\"https:\/\/www.researchgate.net\/publication\/10948546_Loss_and_recovery_of_wings_in_stick_insects\" target=\"_blank\" rel=\"noreferrer noopener\">Loss and recovery of wings in stick insects<\/a>. <em>Nature<\/em>, 421(6920), 264-267.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-d199841c4ccca14b8d68767335ed9d28\">Wiens, J. J. (2011). <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/21521189\/\" target=\"_blank\" rel=\"noreferrer noopener\">Re-evolution of lost mandibular teeth in frogs after more than 200 million years, and re-evaluating Dollo\u2019s law<\/a>. <em>Evolution<\/em>, 65(5), 1283-1296. <a href=\"https:\/\/doi.org\/10.1073\/pnas.0803151105\">doi.org\/10.1073\/pnas.0803151105<\/a><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter is-resized\"><a href=\"https:\/\/biologo.com.br\/bio\/apoie-o-biologo\/\"><img loading=\"lazy\" decoding=\"async\" width=\"174\" height=\"147\" data-attachment-id=\"11979\" data-permalink=\"https:\/\/biologo.com.br\/bio\/caracal-um-mestre-da-sobrevivencia\/apoiepeq\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?fit=174%2C147&amp;ssl=1\" data-orig-size=\"174,147\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"apoiepeq\" data-image-description=\"&lt;p&gt;Apoie o Bi\u00f3logo&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?fit=174%2C147&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2022\/05\/apoiepeq.jpg?resize=174%2C147&amp;ssl=1\" alt=\"Apoie o Bi\u00f3logo\" class=\"wp-image-11979\" style=\"width:156px;height:auto\" title=\"Apoie o Bi\u00f3logo\"\/><\/a><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/biologo.com.br\/bio\/apoie-o-biologo\/\">Apoie o Bi\u00f3logo<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Evolu\u00e7\u00e3o Reversa: a evolu\u00e7\u00e3o n\u00e3o segue apenas caminhos de inova\u00e7\u00e3o. Em certos casos, esp\u00e9cies readquirem tra\u00e7os que haviam desaparecido em<\/p>\n","protected":false},"author":1,"featured_media":19650,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"O atavismo \u00e9 frequentemente mal interpretado como \"evolu\u00e7\u00e3o reversa\", mas \u00e9 fundamental entender a diferen\u00e7a","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[144,134,121,2,27],"tags":[66,62,38,73],"class_list":["post-19624","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anatomia","category-curiosidades","category-evolucao","category-genetica","category-zoologia","tag-anatomia","tag-evolucao","tag-genetica","tag-zoologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Evolu\u00e7\u00e3o Reversa: utopia ou realidade? - Atavismo - Bi\u00f3logo<\/title>\n<meta name=\"description\" content=\"O atavismo \u00e9 frequentemente mal interpretado como &quot;evolu\u00e7\u00e3o reversa&quot;, mas \u00e9 fundamental entender a diferen\u00e7a. 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Zoologia, o estudo da diversidade animal 5\/7\/2025\u00a0::\u00a0 por Josu\u00e9\u2026","rel":"","context":"Em &quot;Biodiversidade&quot;","block_context":{"text":"Biodiversidade","link":"https:\/\/biologo.com.br\/bio\/category\/biodiversidade\/"},"img":{"alt_text":"Zoologia, o estudo da diversidade animal","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Zoologia-o-estudo-da-diversidade-animal.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Zoologia-o-estudo-da-diversidade-animal.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Zoologia-o-estudo-da-diversidade-animal.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Zoologia-o-estudo-da-diversidade-animal.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Zoologia-o-estudo-da-diversidade-animal.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1138,"url":"https:\/\/biologo.com.br\/bio\/comportamento-animal\/","url_meta":{"origin":19624,"position":2},"title":"Comportamento Animal","author":"pozzana","date":"agosto 22, 2016","format":false,"excerpt":"Comportamento Animal:\u00a0A etologia \u00e9 o ramo da zoologia\u00a0que estuda o comportamento das esp\u00e9cies animais. O comportamento animal \u00e9 resultado da intera\u00e7\u00e3o entre fatores gen\u00e9ticos e ambientais. Comportamento Animal: Etologia Segundo Darwin, cada esp\u00e9cie \u00e9 dotada de seu pr\u00f3prio repert\u00f3rio peculiar de padr\u00f5es de comportamento, da mesma forma que \u00e9 dotada\u2026","rel":"","context":"Em &quot;Comportamento&quot;","block_context":{"text":"Comportamento","link":"https:\/\/biologo.com.br\/bio\/category\/comportamento\/"},"img":{"alt_text":"Raposa vermelha - Comportamento Animal","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/08\/raposa-vermelha.jpg?fit=631%2C351&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/08\/raposa-vermelha.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2016\/08\/raposa-vermelha.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":5758,"url":"https:\/\/biologo.com.br\/bio\/evolucao-das-borboletas\/","url_meta":{"origin":19624,"position":3},"title":"Evolu\u00e7\u00e3o das borboletas","author":"pozzana","date":"mar\u00e7o 15, 2019","format":false,"excerpt":"Evolu\u00e7\u00e3o das borboletas: Baseados na an\u00e1lise de genes e f\u00f3sseis, estudos estimam que esses insetos surgiram entre 120 e 100 milh\u00f5es de anos atr\u00e1s. Com voo leve, formas variadas e cores em geral vistosas, as borboletas talvez estejam entre os raros insetos que, em vez de repulsa, despertam deslumbramento nas\u2026","rel":"","context":"Em &quot;Entomologia&quot;","block_context":{"text":"Entomologia","link":"https:\/\/biologo.com.br\/bio\/category\/entomologia\/"},"img":{"alt_text":"Origem das borboletas","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/Origem-das-borboletas.jpg?fit=631%2C351&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/Origem-das-borboletas.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/03\/Origem-das-borboletas.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":5836,"url":"https:\/\/biologo.com.br\/bio\/a-evolucao-do-homem\/","url_meta":{"origin":19624,"position":4},"title":"A evolu\u00e7\u00e3o do homem","author":"pozzana","date":"abril 8, 2019","format":"video","excerpt":"A evolu\u00e7\u00e3o do homem: O estudo da evolu\u00e7\u00e3o humana engloba muitas disciplinas cient\u00edficas, incluindo a antropologia f\u00edsica, primatologia, a arqueologia, lingu\u00edstica e gen\u00e9tica. Abaixo, confira um document\u00e1rio reconstruindo o passado da nossa esp\u00e9cie. Document\u00e1rio: A evolu\u00e7\u00e3o do homem https:\/\/www.youtube.com\/watch?v=4X2GLDPA82A&ab_channel=ManoelSagaz A opini\u00e3o dominante entre os cientistas sobre a origem dos humanos\u2026","rel":"","context":"Em &quot;Evolu\u00e7\u00e3o&quot;","block_context":{"text":"Evolu\u00e7\u00e3o","link":"https:\/\/biologo.com.br\/bio\/category\/evolucao\/"},"img":{"alt_text":"Evolu\u00e7\u00e3o do homem","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Evolucao-do-homem.jpg?fit=631%2C351&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Evolucao-do-homem.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2019\/04\/Evolucao-do-homem.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":45,"url":"https:\/\/biologo.com.br\/bio\/historia-da-paleontologia\/","url_meta":{"origin":19624,"position":5},"title":"Hist\u00f3ria da paleontologia","author":"pozzana","date":"outubro 1, 2015","format":false,"excerpt":"Hist\u00f3ria da Paleontologia:\u00a0A paleontologia, como campo cient\u00edfico estruturado, consolidou-se por volta de 1800. No entanto, a observa\u00e7\u00e3o de f\u00f3sseis remonta \u00e0 Antiguidade. Com toda a certeza, em tanto tempo assim esta hist\u00f3ria \u00e9 muito rica em acontecimentos e descobertas extraordin\u00e1rias, como vamos ver abaixo. Hist\u00f3ria da Paleontologia Ainda no s\u00e9culo\u2026","rel":"","context":"Em &quot;Herpetologia&quot;","block_context":{"text":"Herpetologia","link":"https:\/\/biologo.com.br\/bio\/category\/herpetologia\/"},"img":{"alt_text":"Hist\u00f3ria da Paleontologia","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Historia-da-Paleontologia-fosseis.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Historia-da-Paleontologia-fosseis.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Historia-da-Paleontologia-fosseis.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Historia-da-Paleontologia-fosseis.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2015\/10\/Historia-da-Paleontologia-fosseis.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6NB6B-56w","amp_enabled":true,"_links":{"self":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts\/19624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/comments?post=19624"}],"version-history":[{"count":1,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts\/19624\/revisions"}],"predecessor-version":[{"id":19655,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/posts\/19624\/revisions\/19655"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/media\/19650"}],"wp:attachment":[{"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/media?parent=19624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/categories?post=19624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/biologo.com.br\/bio\/wp-json\/wp\/v2\/tags?post=19624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}