{"id":10911,"date":"2025-08-07T16:37:05","date_gmt":"2025-08-07T19:37:05","guid":{"rendered":"https:\/\/biologo.com.br\/bio\/?p=10911"},"modified":"2025-08-08T12:54:22","modified_gmt":"2025-08-08T15:54:22","slug":"smilodon-entre-sombras-e-ossos","status":"publish","type":"post","link":"https:\/\/biologo.com.br\/bio\/smilodon-entre-sombras-e-ossos\/","title":{"rendered":"Smilodon"},"content":{"rendered":"\n<p><span style=\"font-size: 14pt; color: #000000;\"><span style=\"color: #3366ff;\"><strong>Smilodon: <\/strong><\/span><\/span><span style=\"\"><span style=\"color: rgb(0, 0, 0); font-size: 14pt;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\">conhecido como &#8220;<strong>tigre-dentes-de-sabre<\/strong>&#8220;, foi um dos mais ic\u00f4nicos predadores da Era do Gelo. Viveu nas Am\u00e9ricas e se destacou por seus longos caninos superiores, que podiam ultrapassar 20 cm. Apesar do nome, n\u00e3o era um verdadeiro tigre, mas sim um fel\u00eddeo extinto de linhagem pr\u00f3pria.<\/span><\/span><\/span><\/span><\/span><\/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; 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><strong><strong>Smilodon<\/strong><\/strong><\/strong><\/strong><\/strong><\/strong><\/span><\/strong><\/strong><\/strong><\/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><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>entre sombras e ossos<\/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;\"><strong>7\/8\/2025<\/strong> ::&nbsp; <strong>Marco Pozzana<\/strong>, bi\u00f3logo<\/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-54809df2b0e03f71f277a93865afe13d\"><span style=\"font-family: 'courier new', courier, monospace; font-size: 14pt;\"><strong>N<\/strong><\/span>o final do Pleistoceno, entre vastas pradarias e florestas abertas da Am\u00e9rica, caminhava um felino de apar\u00eancia t\u00e3o imponente quanto enigm\u00e1tica. Com seus caninos curvos e longos como adagas, o <strong>Smilodon<\/strong> rapidamente se tornou um \u00edcone da megafauna extinta.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-031c6698d5e0a5ba2f7dd065576506fd\">O Smilodon fascina por sua apar\u00eancia \u00fanica, marcada pelos imensos caninos curvos que evocam for\u00e7a e mist\u00e9rio. S\u00edmbolo da megafauna extinta, ele desperta imagina\u00e7\u00e3o e respeito mesmo mil\u00eanios ap\u00f3s seu desaparecimento.<\/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\/tigre-dentes-de-sabre-smilodon.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"82\" height=\"121\" data-attachment-id=\"19221\" data-permalink=\"https:\/\/biologo.com.br\/bio\/smilodon-entre-sombras-e-ossos\/tigre-dentes-de-sabre-smilodon\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon.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=\"tigre-dentes-de-sabre-smilodon\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon.jpg?fit=82%2C121&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon.jpg?resize=82%2C121&#038;ssl=1\" alt=\"\" class=\"wp-image-19221\"\/><\/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\/os-ultimos-gigantes-o-colapso-da-megafauna\/\">Os \u00daltimos Gigantes<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/terra-dos-gigantes-ecos-de-um-mundo-perdido\/\">Terra dos gigantes: ecos de um mundo perdido<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/o-dna-dos-extintos\/\">O DNA dos Extintos<\/a><\/li>\n\n\n\n<li class=\"has-medium-font-size\"><a href=\"https:\/\/biologo.com.br\/bio\/dia-internacional-do-tigre\/\">Dia Internacional do Tigre<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-black-color has-text-color has-link-color has-medium-font-size wp-elements-219d868e484bdee6c91379f1e976ceb4\"><span style=\"color: #000000; font-family: courier new,courier,monospace; font-size: 14pt;\">&#8220;<strong><span style=\"color: #000000;\"><strong><span style=\"\"><span style=\"color: rgb(0, 0, 0); font-size: 14pt;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><span style=\"font-size: 14pt; color: #000000;\"><strong>Tigre-dentes-de-sabre<\/strong><\/span><\/span><\/span><\/span><\/span>&#8220;<\/span> <\/strong><\/span><\/strong><\/span><\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-ce3a39d0dba03c091326958fccb3f299\">Embora popularmente chamado de &#8220;tigre-dentes-de-sabre&#8221;, ele n\u00e3o era um verdadeiro tigre. Pelo contr\u00e1rio, estudos apontam que pertencia a um grupo distinto de fel\u00eddeos, separados dos grandes felinos modernos (subfam\u00edlia <em>Pantherinae<\/em>) por milh\u00f5es de anos de evolu\u00e7\u00e3o divergente (Werdelin &amp; Wesley-Hunt, 2010).  <\/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-white-color has-text-color has-link-color has-medium-font-size wp-elements-557964c964d96a79354a6fea85b35fe0\"><strong><em>\u201cO amplo \u00e2ngulo de abertura da mand\u00edbula e os membros anteriores robustos do <\/em>Smilodon fatalis<em> indicam uma t\u00e9cnica de matan\u00e7a distinta da utilizada pelos grandes felinos modernos.\u201d<\/em><\/strong><br>\u2014 <em><strong>Turner &amp; Ant\u00f3n <\/strong>(1997)<\/em>, <em>The Big Cats and their Fossil Relatives<\/em>, Columbia University Press.<\/p>\n<\/blockquote>\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\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" data-attachment-id=\"19224\" data-permalink=\"https:\/\/biologo.com.br\/bio\/smilodon-entre-sombras-e-ossos\/smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?fit=1202%2C676&amp;ssl=1\" data-orig-size=\"1202,676\" 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=\"Smilodon entre sombras e ossos-tigre-dentes-de-sabre\" data-image-description=\"&lt;p&gt;As esp\u00e9cies mais conhecidas \u2014 Smilodon fatalis, Smilodon gracilis e Smilodon populator \u2014 ocuparam desde as savanas da Am\u00e9rica do Norte at\u00e9 as regi\u00f5es mais temperadas da Am\u00e9rica do Sul. De todos, o S. populator, que viveu no Brasil e na Argentina, foi o maior, chegando a pesar at\u00e9 400 kg (Prevosti et al., 2005).&lt;\/p&gt;\n&lt;p&gt;Apesar do nome intimidador, o Smilodon n\u00e3o era apenas uma m\u00e1quina de matar. Sua anatomia revela adapta\u00e7\u00f5es complexas, estrat\u00e9gias de ca\u00e7a \u00fanicas e at\u00e9 ind\u00edcios de comportamentos sociais, o que desafia antigas concep\u00e7\u00f5es sobre os carn\u00edvoros extintos.&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Smilodon entre sombras e ossos-tigre-dentes-de-sabre\" class=\"wp-image-19224\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/Smilodon-entre-sombras-e-ossos-tigre-dentes-de-sabre.jpg?w=1202&amp;ssl=1 1202w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-72cc2ba4f15a30b6def9cd1523132642\">Essa confus\u00e3o \u00e9 alimentada pela apar\u00eancia semelhante e pelo uso popular do termo &#8220;tigre&#8221;. No entanto, do ponto de vista filogen\u00e9tico, o Smilodon era apenas um parente distante dos grandes felinos atuais, representando um ramo evolutivo pr\u00f3prio, especializado em t\u00e9cnicas de preda\u00e7\u00e3o \u00fanicas e adaptado a ambientes muito distintos dos que os tigres habitam hoje.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span style=\"color: #000000; font-family: courier new,courier,monospace; font-size: 14pt;\"><strong><span style=\"color: #000000;\"><strong>Um predador ancestral <\/strong><\/span><\/strong><\/span> <\/h2>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-38aaa6fab55384e5d34d21bd8e862217\">Seu nome deriva do grego <em>smil\u0113<\/em> (faca) e <em>odous<\/em> (dente), uma refer\u00eancia direta \u00e0 arma mais marcante desse animal. As esp\u00e9cies mais conhecidas \u2014 <em><strong>Smilodon fatalis<\/strong>, <strong>Smilodon gracilis<\/strong><\/em> e <em><strong>Smilodon populator<\/strong> <\/em>\u2014 ocuparam desde as savanas da Am\u00e9rica do Norte at\u00e9 as regi\u00f5es mais temperadas da Am\u00e9rica do Sul. De todos, o <strong><em>S. populator<\/em><\/strong>, que viveu no Brasil e na Argentina, foi o maior, chegando a pesar at\u00e9 400 kg.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/i.pinimg.com\/originals\/58\/de\/3e\/58de3e8db90c1af18b86eca752677bef.gif?w=800&#038;ssl=1\" alt=\"\"\/><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-f2ce0be8fe96c4c251be9de0b4d64df9\">Apesar do nome intimidador, o Smilodon n\u00e3o era apenas uma m\u00e1quina de matar. Estudos da anatomia revelam adapta\u00e7\u00f5es complexas, com poss\u00edveis estrat\u00e9gias de ca\u00e7a \u00fanicas e at\u00e9 ind\u00edcios de comportamentos sociais sofisticados, o que desafia antigas concep\u00e7\u00f5es sobre os carn\u00edvoros extintos.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span style=\"color: #000000; font-family: courier new,courier,monospace; font-size: 14pt;\"><strong><span style=\"color: #000000;\"><strong>Uma anatomia feita para o impacto <\/strong><\/span><\/strong><\/span><\/h3>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-d9367184ffe83274f3b76234c585bf71\">O corpo do Smilodon era robusto e musculoso, com membros anteriores particularmente fortes. Ao contr\u00e1rio dos felinos modernos, que encontram \u00eaxito na velocidade e agilidade, o Smilodon priorizava a for\u00e7a. Por isso, presume-se que ele ca\u00e7ava emboscando as presas, em vez de persegui-las em alta velocidade (Meachen-Samuels &amp; Van Valkenburgh, 2010). Ap\u00f3s o salto, o golpe de suas patas poderosas derrubava a v\u00edtima. Em seguida, os impressionantes caninos, que podiam ultrapassar 25 cm, entravam em a\u00e7\u00e3o.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-5f31127d3a7dd10e8422b1f0449131c8\">Curiosamente, os dentes sabres n\u00e3o serviam para perfurar ossos. Eram fr\u00e1geis diante de estruturas duras. Por isso, provavelmente eram usados para cortar grandes vasos sangu\u00edneos no pesco\u00e7o ou na garganta, causando morte r\u00e1pida por hemorragia (Turner &amp; Ant\u00f3n, 1997). Assim, o Smilodon matava com precis\u00e3o cir\u00fargica, combinando for\u00e7a e t\u00e9cnica.<\/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\"><strong>\u201c<em>No <\/em>Smilodon populator, <em>o desenvolvimento de um porte corporal massivo e de caninos superiores hipertrofiados representa um dos casos mais extremos de especializa\u00e7\u00e3o entre os carn\u00edvoros.\u201d<\/em><\/strong><br>\u2014 <em><strong>Prevosti et al.<\/strong> (2005)<\/em>, <em>Journal of Vertebrate Paleontology<\/em>,<\/p>\n<\/blockquote>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-0ecd4687567a995db95c616e18e8096b\">Outro aspecto fascinante est\u00e1 relacionado \u00e0 sua mand\u00edbula. Enquanto os le\u00f5es modernos conseguem abrir a boca at\u00e9 cerca de 65 graus, o Smilodon, em contraste, podia atingir \u00e2ngulos de at\u00e9 120 graus \u2014 uma adapta\u00e7\u00e3o essencial ao uso de caninos t\u00e3o longos. Para tanto, essa abertura exigia ligamentos extremamente flex\u00edveis e m\u00fasculos especializados,<strong> <\/strong>o que, por sua vez, refor\u00e7a ainda mais sua singularidade evolutiva.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-841fb88203bfa8950864dd4a64c3fb57\">Al\u00e9m disso, an\u00e1lises de f\u00f3sseis com ossos cicatrizados sugerem que muitos indiv\u00edduos sobreviveram a les\u00f5es graves. Isso levou cientistas a propor que o Smilodon pudesse viver em grupos cooperativos, cuidando dos feridos \u2014 um tra\u00e7o raro entre felinos e um poss\u00edvel sinal de comportamento social avan\u00e7ado.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><span style=\"color: #000000; font-family: courier new,courier,monospace; font-size: 14pt;\"><strong><span style=\"color: #000000;\"><strong>O \u00faltimo rugido da megafauna<\/strong><\/span><\/strong><\/span> <\/h4>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-4be2ae0706aa921afae179971848402b\">Contudo, mesmo sendo um predador formid\u00e1vel, o Smilodon n\u00e3o sobreviveu ao colapso ecol\u00f3gico do final do Pleistoceno. H\u00e1 cerca de 10 mil anos, junto com dezenas de outras esp\u00e9cies de grande porte, ele desapareceu da paisagem americana. V\u00e1rios fatores podem ter contribu\u00eddo para sua extin\u00e7\u00e3o, e nenhum isoladamente explica todo o fen\u00f4meno.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" data-attachment-id=\"18785\" data-permalink=\"https:\/\/biologo.com.br\/bio\/preguica-gigante\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.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=\"pregui\u00e7a-gigante\" data-image-description=\"&lt;p&gt;As pregui\u00e7as-gigantes ou pregui\u00e7as-terr\u00edcolas s\u00e3o um grupo de mam\u00edferos pr\u00e9-hist\u00f3ricos que habitaram as Am\u00e9ricas. Cientificamente s\u00e3o classificados dentro da superordem Xenarthra e relacionados com as pregui\u00e7as atuais, que s\u00e3o arbor\u00edcolas. O grupo \u00e9 constitu\u00eddo por seis fam\u00edlias e 88 g\u00eaneros, todos extintos&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Pregui\u00e7a-gigante\" class=\"wp-image-18785\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.jpg?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/preguica-gigante.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Pregui\u00e7a-gigante: uma poss\u00edvel presa do Smilodon <\/figcaption><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-ccd9990210da71d49a257b7e88d1e640\">Por outro lado, o clima estava mudando rapidamente. Com o fim da Era do Gelo, ecossistemas inteiros se transformaram. Florestas substitu\u00edram pradarias, e as presas favoritas do Smilodon \u2014 como os grandes herb\u00edvoros, incluindo pregui\u00e7as gigantes, cavalos nativos e gliptodontes \u2014 come\u00e7aram a desaparecer (Barnosky et al., 2004). Sem alimento, o predador entrou em decl\u00ednio.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-2b26f93889b9b3f1d344ce2611b6a78b\">Por outro lado, a chegada do Homo sapiens \u00e0 Am\u00e9rica do Sul, h\u00e1 cerca de 14 mil anos, marca um divisor de \u00e1guas. H\u00e1 ind\u00edcios de que a ca\u00e7a excessiva e a fragmenta\u00e7\u00e3o de habitats tenham acelerado a extin\u00e7\u00e3o da megafauna. Embora os humanos e o Smilodon tenham coexistido por algum tempo, \u00e9 poss\u00edvel que a competi\u00e7\u00e3o por presas, ou at\u00e9 conflitos diretos, tenham contribu\u00eddo para seu desaparecimento (Martin, 1984).<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-257fb4623e1f5cceb253502921aeff09\">Assim, com o colapso das redes ecol\u00f3gicas, mesmo o mais imponente dos felinos sucumbiu. Restaram apenas ossos e dentes escondidos sob camadas de sedimento \u2014 e, com o tempo, um misto de fasc\u00ednio e nostalgia.<\/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\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" data-attachment-id=\"19222\" data-permalink=\"https:\/\/biologo.com.br\/bio\/smilodon-entre-sombras-e-ossos\/tigre-dentes-de-sabre-smilodon-grande\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?fit=1202%2C676&amp;ssl=1\" data-orig-size=\"1202,676\" 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=\"tigre-dentes-de-sabre-smilodon-grande\" data-image-description=\"&lt;p&gt;No final do Pleistoceno, entre vastas pradarias e florestas abertas da Am\u00e9rica, caminhava um felino de apar\u00eancia t\u00e3o imponente quanto enigm\u00e1tica. Com seus caninos curvos e longos como adagas, o Smilodon rapidamente se tornou um \u00edcone da megafauna extinta. &lt;\/p&gt;\n&lt;p&gt;O Smilodon fascina por sua apar\u00eancia \u00fanica, marcada pelos imensos caninos curvos que evocam for\u00e7a e mist\u00e9rio. S\u00edmbolo da megafauna extinta, ele desperta imagina\u00e7\u00e3o e respeito mesmo mil\u00eanios ap\u00f3s seu desaparecimento.&lt;\/p&gt;\n\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Smilodon: entre sombras e ossos - tigre-dentes-de-sabre\" class=\"wp-image-19222\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/08\/tigre-dentes-de-sabre-smilodon-grande.jpg?w=1202&amp;ssl=1 1202w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\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\"><strong>\u201cA morfologia do Smilodon sugere um predador altamente especializado, adaptado para subjugar presas de grande porte usando membros anteriores poderosos e caninos alongados.\u201d<\/strong><br>\u2014 <em><strong>Meachen-Samuels &amp; Van Valkenburgh<\/strong> (2010)<\/em>, <em>PLOS ONE<\/em><\/p>\n<\/blockquote>\n\n\n\n<h5 class=\"wp-block-heading\"><span style=\"color: #000000; font-family: courier new,courier,monospace; font-size: 14pt;\"><strong><span style=\"color: #000000;\"><strong>Legado de dentes longos <\/strong><\/span><\/strong><\/span><\/h5>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-bb894648d62dffb0ded3d2ad19992aed\">Atualmente, o Smilodon permanece vivo no imagin\u00e1rio popular. Al\u00e9m disso, est\u00e1 presente em museus, livros, filmes e jogos, nos quais se consolidou como um s\u00edmbolo marcante de uma era perdida. Por essa raz\u00e3o, seus f\u00f3sseis s\u00e3o estudados com rever\u00eancia, sobretudo aqueles preservados nos c\u00e9lebres po\u00e7os de piche de La Brea, em Los Angeles \u2014 local onde centenas de indiv\u00edduos foram recuperados em estado extraordinariamente bem conservado.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/biologo.com.br\/bio\/evolucao-convergente-caminho-diferente-solucao-semelhante\/\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"450\" data-attachment-id=\"18797\" data-permalink=\"https:\/\/biologo.com.br\/bio\/evolucao-convergente-caminho-diferente-solucao-semelhante\/evolucao-convergente-dentes\/\" data-orig-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.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=\"evolucao-convergente-dentes\" data-image-description=\"&lt;p&gt;Tigre-dentes-de-sabre (Smilodon) e Thylacosmilus Apar\u00eancia semelhante: ambos tinham caninos longos e curvados. Origem distinta: Smilodon era um mam\u00edfero placent\u00e1rio; Thylacosmilus, um marsupial sul-americano. Evolu\u00e7\u00e3o Convergente: Nem sempre esp\u00e9cies parecidas t\u00eam um ancestral pr\u00f3ximo comum. A evolu\u00e7\u00e3o convergente ocorre quando organismos diferentes desenvolvem caracter\u00edsticas semelhantes devido a press\u00f5es ambientais parecidas. Um exemplo cl\u00e1ssico \u00e9 representado pelas asas de morcegos e aves.&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Tigre-dentes-de-sabre (Smilodon) e Thylacosmilus Apar\u00eancia semelhante: ambos tinham caninos longos e curvados. Origem distinta: Smilodon era um mam\u00edfero placent\u00e1rio; Thylacosmilus, um marsupial sul-americano. Evolu\u00e7\u00e3o Convergente: caminho diferente, solu\u00e7\u00e3o semelhante. Impressionante como a evolu\u00e7\u00e3o convergente moldou estruturas t\u00e3o parecidas em animais t\u00e3o diferentes&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.jpg?fit=800%2C450&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.jpg?resize=800%2C450&#038;ssl=1\" alt=\"Evolu\u00e7\u00e3o Convergente: caminho diferente, solu\u00e7\u00e3o semelhante\" class=\"wp-image-18797\" srcset=\"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.jpg?resize=1024%2C576&amp;ssl=1 1024w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.jpg?resize=300%2C169&amp;ssl=1 300w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.jpg?resize=768%2C432&amp;ssl=1 768w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.jpg?resize=150%2C84&amp;ssl=1 150w, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2025\/07\/evolucao-convergente-dentes.jpg?w=1200&amp;ssl=1 1200w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/biologo.com.br\/bio\/evolucao-convergente-caminho-diferente-solucao-semelhante\/\">Evolu\u00e7\u00e3o Convergente: caminho diferente, solu\u00e7\u00e3o semelhante<\/a>. <strong>Smilodon e Thylacosmilus<\/strong>: ambos tinham caninos longos e curvados. Origem distinta: Smilodon era um mam\u00edfero placent\u00e1rio; Thylacosmilus, um marsupial sul-americano. <\/figcaption><\/figure>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-7871486e62184f9bc234e32b1dd1bb85\">Al\u00e9m disso, a biologia evolutiva v\u00ea no Smilodon um excelente exemplo de <a href=\"https:\/\/biologo.com.br\/bio\/evolucao-convergente-caminho-diferente-solucao-semelhante\/\"><span style=\"text-decoration: underline;\">converg\u00eancia adaptativa<\/span><\/a>. Afinal, dentes sabres surgiram independentemente em outros grupos de mam\u00edferos, como os nimr\u00e1vidos, refor\u00e7ando a ideia de que formas semelhantes podem evoluir diante de press\u00f5es semelhantes. No entanto, nenhuma dessas linhagens sobreviveu ao Holoceno.<\/p>\n\n\n\n<p class=\"has-black-color has-text-color has-link-color has-medium-font-size wp-elements-17e057028c114f23ee4cdf4fef398635\">Portanto, ao estudar o Smilodon, n\u00e3o apenas olhamos para tr\u00e1s, mas tamb\u00e9m refletimos sobre a fragilidade das esp\u00e9cies e a complexidade dos ecossistemas. Seu desaparecimento nos lembra que nem mesmo os gigantes s\u00e3o eternos. E que, em \u00faltima an\u00e1lise, toda criatura \u2014 por mais tem\u00edvel que pare\u00e7a \u2014 depende do delicado equil\u00edbrio da natureza.<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong><strong style=\"font-family: &quot;courier new&quot;, courier, monospace; font-size: 12pt;\">Fontes e refer\u00eancias:<\/strong><\/strong><\/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-444a0291bc113a040d9baf922b66ca9f\">Barnosky, A. D., et al. (2004). <a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.1101476\" target=\"_blank\" rel=\"noreferrer noopener\">Assessing the causes of Late Pleistocene extinctions on the continents<\/a>. <em>Science<\/em>, 306(5693), 70\u201375.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-dbb42b0f9e00554c83a9278623ebfc23\">Martin, P. S. (1984). <a href=\"https:\/\/www.researchgate.net\/publication\/234046364_Quaternary_Extinctions_A_Prehistoric_Revolution\" target=\"_blank\" rel=\"noreferrer noopener\"><em>Prehistoric overkill: The global model<\/em>. In: Martin &amp; Klein (Eds.), <em>Quaternary extinctions<\/em>.<\/a> University of Arizona Press. [PDF}<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-a0e5e72a08331730ce7f4101d70c2c78\">Meachen-Samuels, J., &amp; Van Valkenburgh, B. (2010). <a href=\"https:\/\/journals.plos.org\/plosone\/article?id=10.1371\/journal.pone.0011412\" target=\"_blank\" rel=\"noreferrer noopener\">Radiographs reveal exceptional forelimb strength in the sabertooth cat, <em>Smilodon fatalis<\/em><\/a>. <em>PLOS ONE<\/em>, 5(7), e11412.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-484ddf0d87a0c0887877fcf4eb0f7842\">Turner, A., &amp; Ant\u00f3n, M. (1997). <em><a href=\"https:\/\/archive.org\/details\/the-big-cats-and-their-fossil-relatives-an-illustrated-guide-to-their-evolution-\" target=\"_blank\" rel=\"noreferrer noopener\">The Big Cats and their Fossil Relatives<\/a><\/em>. Columbia University Press.<\/li>\n\n\n\n<li class=\"has-black-color has-text-color has-link-color has-small-font-size wp-elements-23de4acb7bcfc79ae12aa92d1c560606\">Werdelin, L., et al. (2010). <a href=\"https:\/\/www.researchgate.net\/publication\/266755142_Phylogeny_and_evolution_of_cats_Felidae\" target=\"_blank\" rel=\"noreferrer noopener\">&nbsp;Phylogeny and evolution of cats (Felidae)<\/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\n\n\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Smilodon: conhecido como &#8220;tigre-dentes-de-sabre&#8220;, foi um dos mais ic\u00f4nicos predadores da Era do Gelo. Viveu nas Am\u00e9ricas e se destacou<\/p>\n","protected":false},"author":1,"featured_media":19222,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_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":"Smilodon: conhecido como \"tigre-dentes-de-sabre\", foi um dos mais ic\u00f4nicos predadores da Era do Gelo. Viveu nas Am\u00e9ricas e se destacou por seus longos caninos superiores, que podiam ultrapassar 20 cm. ","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[121,25,9,28,27],"tags":[62,69,60,300,73],"class_list":["post-10911","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evolucao","category-mamiferos","category-mastozoologia","category-paleontologia","category-zoologia","tag-evolucao","tag-mamiferos","tag-paleontologia","tag-smilodon","tag-zoologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Smilodon: entre sombras e ossos - O &quot;Tigre-dentes-de-sabre&quot;.<\/title>\n<meta name=\"description\" content=\"Smilodon: conhecido como &quot;tigre-dentes-de-sabre&quot;, foi um dos mais ic\u00f4nicos predadores da Era do Gelo. 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A era dos cinodontes 17\/11\/2020 ::\u00a0 por Igor Zolnerkevic\/Revista Fapesp Dezenas de milh\u00f5es de anos antes de os dinossauros dominarem a Terra, reinava sobre os continentes\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":"A era dos cinodontes","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/11\/A-era-dos_Cinodontes.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\/2020\/11\/A-era-dos_Cinodontes.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/11\/A-era-dos_Cinodontes.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":7448,"url":"https:\/\/biologo.com.br\/bio\/origem-dos-mamiferos\/","url_meta":{"origin":10911,"position":4},"title":"Origem dos mam\u00edferos","author":"pozzana","date":"julho 30, 2020","format":false,"excerpt":"Origem dos mam\u00edferos: F\u00f3sseis de pequenas esp\u00e9cies descobertas no Rio Grande do Sul podem ser os ancestrais mais pr\u00f3ximos dos maiores animais de hoje Origem dos mam\u00edferos 30\/7\/2020 ::\u00a0 Marcos Pivetta \/ Pesquisa FAPESP. \u00a0CC BY-ND 4.0 Qualquer paleont\u00f3logo sabe que os mam\u00edferos descendem de alguma forma de cinodonte, vasto\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":"Origem dos mam\u00edferos","src":"https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/07\/Origem-dos-mamiferos-Cinodonte.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\/2020\/07\/Origem-dos-mamiferos-Cinodonte.jpg?fit=631%2C351&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/biologo.com.br\/bio\/wp-content\/uploads\/2020\/07\/Origem-dos-mamiferos-Cinodonte.jpg?fit=631%2C351&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":402,"url":"https:\/\/biologo.com.br\/bio\/mastozoologia-ou-mamalogia\/","url_meta":{"origin":10911,"position":5},"title":"Mastozoologia","author":"pozzana","date":"novembro 26, 2015","format":false,"excerpt":"Mastozoologia ou Mamalogia, \u00e9 o ramo da zoologia que se ocupa do estudo dos mam\u00edferos. 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