{"id":2374,"date":"2014-07-16T15:00:48","date_gmt":"2014-07-16T20:00:48","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=2374"},"modified":"2014-07-16T15:00:48","modified_gmt":"2014-07-16T20:00:48","slug":"des-crevettes-etranges-avec-un-cerveau-et-des-pinces-modernes","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/des-crevettes-etranges-avec-un-cerveau-et-des-pinces-modernes\/","title":{"rendered":"Des crevettes \u00e9tranges avec un cerveau et des pinces modernes"},"content":{"rendered":"<div id=\"attachment_2359\" style=\"width: 410px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/Lyrarapax_artists_impression.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2359\" class=\"size-full wp-image-2359\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/Lyrarapax_artists_impression.jpg\" alt=\"Vue d\u2019artiste du Lyararapax pourchassant des poissons primitifs. Ce pr\u00e9dateur vivait pendant le Cambrien inf\u00e9rieur il y a plus de 510 millions d\u2019ann\u00e9es. (Image : Nicholas Strausfeld, Universit\u00e9 d\u2019Arizona)\" width=\"400\" height=\"323\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/Lyrarapax_artists_impression.jpg 400w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/Lyrarapax_artists_impression-300x242.jpg 300w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><p id=\"caption-attachment-2359\" class=\"wp-caption-text\">Vue d\u2019artiste du Lyararapax pourchassant des poissons primitifs. Ce pr\u00e9dateur vivait pendant le Cambrien inf\u00e9rieur il y a plus de 510 millions d\u2019ann\u00e9es. (Image : Nicholas Strausfeld, Universit\u00e9 d\u2019Arizona)<\/p><\/div>\n<p><span style=\"color: #222222;\">De nouveaux fossiles bien pr\u00e9serv\u00e9s d\u00e9couverts en Chine montrent qu\u2019un pr\u00e9dateur marin ayant v\u00e9cu il y a plus de 510 millions d\u2019ann\u00e9es avait d\u00e9j\u00e0 un syst\u00e8me nerveux des plus modernes. Ces animaux font partie de la famille des anomalocarides, ou \u00ab \u00e9tranges crevettes \u00bb, et les premiers sp\u00e9cimens avaient \u00e9t\u00e9\u00a0<\/span><a style=\"color: #1155cc;\" href=\"http:\/\/burgess-shale.rom.on.ca\/en\/fossil-gallery\/view-species.php?id=1\" target=\"_blank\">trouv\u00e9s dans les schistes de Burgess<\/a><span style=\"color: #222222;\"> en Colombie-Britannique dans le parc national de Yoho. <\/span><\/p>\n<p><span style=\"color: #222222;\">Ces fossiles chinois appartiennent \u00e0 une nouvelle esp\u00e8ce d\u2019anomalocarides appel\u00e9e <\/span><span style=\"font-style: italic; color: #222222;\">Lyrarapax unquispinus<\/span><span style=\"color: #222222;\"> et sont si bien pr\u00e9serv\u00e9s que son syst\u00e8me nerveux est visible. Les chercheurs constatent que le cerveau et les pinces ressemblent \u00e0 ceux d\u2019insectes, de crevettes et de homards modernes.<\/span><\/p>\n<p>Pour lire l\u2019article original publi\u00e9 dans\u00a0<em>Nature\u00a0<\/em>le\u00a0<strong>16 juillet\u00a0<\/strong><strong>2014<\/strong>,\u00a0<span style=\"text-decoration: underline;\"><span><a href=\"http:\/\/www.nature.com\/nature\/journal\/vaop\/ncurrent\/full\/nature13486.html\" target=\"_blank\">cliquez\u00a0ici<\/a><\/span><\/span>.<\/p>\n<p><span style=\"text-decoration: underline;\"><span><em><strong>Auteur \u00e0 contacter pour plus d\u2019informations<\/strong><\/em><\/span><\/span><\/p>\n<h4 dir=\"ltr\" style=\"color: #222222;\">Peiyun Cong, Universit\u00e9 Yunnan, Chine<\/h4>\n<h4 dir=\"ltr\" style=\"color: #222222;\">Nicholas Strausfeld, Universit\u00e9 d\u2019Arizona, U.S.A.<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>De nouveaux fossiles bien pr\u00e9serv\u00e9s d\u00e9couverts en Chine montrent qu\u2019un pr\u00e9dateur marin ayant v\u00e9cu il y a plus de 510 millions d\u2019ann\u00e9es avait d\u00e9j\u00e0 un syst\u00e8me nerveux des plus modernes. Ces animaux font partie de la famille des anomalocarides, ou \u00ab \u00e9tranges crevettes \u00bb, et les premiers sp\u00e9cimens avaient \u00e9t\u00e9\u00a0trouv\u00e9s dans les schistes de Burgess [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2359,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_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":""},"categories":[531],"tags":[919,1939,1150],"class_list":["post-2374","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest-fr","tag-evolution-fr","tag-fossiles","tag-neurologie"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/Lyrarapax_artists_impression.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-Ci","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2374","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=2374"}],"version-history":[{"count":1,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2374\/revisions"}],"predecessor-version":[{"id":2377,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2374\/revisions\/2377"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/2359"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=2374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=2374"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=2374"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}