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background: url() no-repeat 50% 0;
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background: #0be6af;
}
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a:visited,
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.woocommerce .woocommerce-breadcrumb a {
color: #ff005b;
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color: #ff005b;
}
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background: #e8b100;
}
nav.mvp-fly-nav-menu ul li.menu-item-has-children:after,
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.woocommerce-message:before,
.woocommerce-info:before,
.woocommerce-message:before {
color: #e8b100;
}
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border-bottom: 1px solid #e8b100;
}
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border-top: 1px solid #e8b100;
border-left: 1px solid #e8b100;
border-bottom: 1px solid #e8b100;
}
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background-color: #e8b100;
}
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.woocommerce-info,
.woocommerce-message {
border-top-color: #e8b100;
}
ul.mvp-feat1-list-buts li.active span.mvp-feat1-list-but,
span.mvp-widget-home-title,
span.mvp-post-cat,
span.mvp-feat1-pop-head {
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}
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background-color: #e8b100;
}
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.woocommerce .star-rating span:before,
span.mvp-prev-next-label,
.mvp-cat-date-wrap .sticky {
color: #e8b100 !important;
}
#mvp-main-nav-top,
#mvp-fly-wrap,
.mvp-soc-mob-right,
#mvp-main-nav-small-cont {
background: #e8b100;
}
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.mvp-nav-top-left .mvp-fly-but-wrap span,
#mvp-fly-wrap .mvp-fly-but-wrap span {
background: #000000;
}
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span.mvp-fly-soc-head,
.mvp-soc-mob-right i,
#mvp-main-nav-small span.mvp-nav-search-but,
#mvp-main-nav-small .mvp-nav-menu ul li a {
color: #000000;
}
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border-color: #000000 transparent transparent transparent;
}
#mvp-nav-top-wrap span.mvp-nav-search-but:hover,
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color: #000000;
}
#mvp-nav-top-wrap .mvp-fly-but-wrap:hover span,
#mvp-main-nav-small .mvp-fly-but-wrap:hover span,
span.mvp-woo-cart-num:hover {
background: #000000;
}
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background: #efd421;
}
#mvp-nav-bot-wrap .mvp-fly-but-wrap span,
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background: #000000;
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border-color: #000000 transparent transparent transparent;
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}
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a.mvp-inf-more-but,
span.mvp-cont-read-but,
span.mvp-cd-cat,
span.mvp-cd-date,
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span.mvp-woo-cart-num,
span.mvp-widget-home-title2,
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font-family: 'Roboto', sans-serif;
font-display: swap;
}
.mvp-blog-story-text p,
span.mvp-author-page-desc,
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.rwp-summary,
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.wp-block-video figcaption,
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pre.wp-block-verse {
font-family: 'PT Serif', sans-serif;
font-display: swap;
}
.mvp-nav-menu ul li a,
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font-family: 'Texicali Semi Bold', sans-serif;
font-display: swap;
}
.mvp-feat1-sub-text h2,
.mvp-feat1-pop-text h2,
.mvp-feat1-list-text h2,
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.mvp-widget-dark-feat-text h2,
.mvp-widget-dark-sub-text h2,
.mvp-widget-feat2-left-text h2,
.mvp-widget-feat2-right-text h2,
.mvp-blog-story-text h2,
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.mvp-vid-wide-more-text p,
.mvp-prev-next-text p,
.mvp-related-text,
.mvp-post-more-text p,
h2.mvp-authors-latest a,
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.mvp-feat3-sub-text h2,
.mvp-feat3-main-text h2,
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.mvp-feat5-small-main-text h2,
.mvp-feat5-mid-sub-text h2,
#mvp-feat6-text h2,
.alp-related-posts-wrapper .alp-related-post .post-title {
font-family: 'Texicali Semi Bold', sans-serif;
font-display: swap;
}
.mvp-feat2-top-text h2,
.mvp-feat1-feat-text h2,
h1.mvp-post-title,
h1.mvp-post-title-wide,
.mvp-drop-nav-title h4,
#mvp-content-main blockquote p,
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#mvp-404 h1,
#woo-content h1.page-title,
.woocommerce div.product .product_title,
.woocommerce ul.products li.product h3,
.alp-related-posts .current .post-title {
font-family: 'Texicali Semi Bold', sans-serif;
font-display: swap;
}
span.mvp-feat1-pop-head,
.mvp-feat1-pop-text:before,
span.mvp-feat1-list-but,
span.mvp-widget-home-title,
.mvp-widget-feat2-side-more,
span.mvp-post-cat,
span.mvp-page-head,
h1.mvp-author-top-head,
.mvp-authors-name,
#mvp-content-main h1,
#mvp-content-main h2,
#mvp-content-main h3,
#mvp-content-main h4,
#mvp-content-main h5,
#mvp-content-main h6,
.woocommerce .related h2,
.woocommerce div.product .woocommerce-tabs . h2,
.woocommerce div.product .product_title,
.mvp-feat5-side-list .mvp-feat1-list-img:after {
font-family: 'Texicali Semi Bold', sans-serif;
font-display: swap;
}
span.mvp-nav-soc-but,
ul.mvp-fly-soc-list li a,
span.mvp-woo-cart-num {
background: rgba(0,0,0,.8);
}
span.mvp-woo-cart-icon {
color: rgba(0,0,0,.8);
}
nav.mvp-fly-nav-menu ul li,
nav.mvp-fly-nav-menu ul li ul.sub-menu {
border-top: 1px solid rgba(0,0,0,.1);
}
nav.mvp-fly-nav-menu ul li a {
color: #000;
}
.mvp-drop-nav-title h4 {
color: #000;
}
.alp-advert {
display: none;
}
.alp-related-posts-wrapper .alp-related-posts .current {
margin: 0 0 10px;
} /* */
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Esse peixe vive desde antes dos dinossauros e segue quase igual 3o1t5c
Tecnologia 3p2o5d Esse peixe vive desde antes dos dinossauros e segue quase igual 3o1t5c Publicado
2 dias ago on
13/06/2025
Um dos peixes mais estudados da história é o Celacanto . E não é para menos: o primeiro fóssil dele data de 419 milhões de anos atrás, ou seja muito antes do aparecimento dos dinossauros .
Os cientistas, aliás, acreditaram por muito tempo que a espécie havia sido extinta junto com os grandes répteis, há 65 milhões de anos. Essa crença durou até 1938, quando um curador de um museu sul-africano fez uma descoberta sem precedentes: ele encontrou um desses peixes em um barco de pesca local.
Os exemplares encontrados eram muito parecidos com os fósseis conhecidos. Isso por si só já era gigantesco. Os Celacantos, porém, são ainda mais importantes. Eles possuem nadadeiras lobuladas pareadas, que se estendem para longe do corpo como se fossem pernas.
De acordo com os pesquisadores, isso faz com que os Celacantos se assemelhem aos primeiros animais terrestres da história. Lembrando que, de acordo com a ciência, a vida surgiu na água e demorou milhões de anos para ir para a terra firma. Os Celacantos podem ajudar a mostrar como ocorreu essa transição.
É por esses motivos que os exemplares da espécie que vivem até hoje receberam o apelido de “fósseis vivos”.
Fóssil de celacanto de 240 milhões de anos recém-descoberto impressionantemente bem preservado – Imagem: P. Wagneur – MHNG
Onde os encontramos – e mais sobre os Celacantos c226h Esses peixes residem no oceano, em profundidades de até 800 metros. Existem duas espécies atualmente: uma que vive perto das Ilhas Comores, na costa leste da África, e outra encontrada nas águas de Sulawesi, na Indonésia . Durante o dia, esses animais ficam em cavernas vulcânicas sozinhos ou em pequenos grupos. As fêmeas são um pouco maiores do que os machos, atingindo cerca de dois metros de comprimento e pesando até 110 quilos. Geralmente, costumam ser de cor azul ou cinza azulada. Um estudo afirma que a espécie “tímida” pode viver até os 100 anos, 5 vezes mais do que se acreditava inicialmente. Isso tem a ver com o seu ritmo mais lento – e a curva evolutiva mais lenta também. É aí que entra o próximo tópico. A espécie foi encontrada recentemente na natureza, nas profundezas de Sulawesi, na Indonésia – Imagem: Divulgação/Alexis Chappuis É fóssil vivo ou não é? 26w Durante muito tempo, a comunidade científica chamou essa espécie de fóssil vivo. Estudos mais recentes, no entanto, criticam essa nomenclatura.
Um artigo na revista Nature Communications , por exemplo, afirma que esse conceito está errado, pois os exemplares atuais são diferentes dos peixes que viviam no Período Devoniano.
Para provar esse ponto, a equipe da Universidade de Quebec estudou um fóssil de um local chamado Formação Gogo, ao leste da Austrália. Essa área foi um recife tropical há mais de 380 milhões de anos, onde viviam mais de 50 espécies de peixes, incluindo Celacantos. E os restos mortais mostraram que se tratam de animais morfologicamente diferentes.
Especialistas não gostam de usar o termo “fóssil vivo” para se referir aos Celacantos – Imagem: Reprodução/Wikipedia Commons Uma hipótese é que os Celacantos atuais se parecem muito com os anteados por causa da sua curva evolutiva mais lenta. O tempo, aliás, parece correr de uma forma diferente para os Celacantos.
Para você ter uma ideia, as fêmeas carregam seus filhotes por cinco anos, o período de gestação mais longo já conhecido de todos os animais. Além disso, os indivíduos demoram longos 55 anos para atingir a maturidade sexual.
Diante desses dados, os pesquisadores sustentam que esses peixes não são “fósseis vivos”, mas sim uma espécie em evolução (ainda que muita lenta).
Texto feito com base em uma reportagem do Olhar Digital de 20/09/2024 .
OLHAR DIGITAL – Link original da matéria