{"id":10266,"date":"2016-01-11T00:00:47","date_gmt":"2016-01-10T23:00:47","guid":{"rendered":"http:\/\/www.laterredufutur.com\/accueil\/?p=10266"},"modified":"2016-01-01T15:49:18","modified_gmt":"2016-01-01T14:49:18","slug":"les-ancetres-de-tous-les-oiseaux-descendent-dun-coin-de-terre-de-lamerique-du-sud","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/les-ancetres-de-tous-les-oiseaux-descendent-dun-coin-de-terre-de-lamerique-du-sud\/","title":{"rendered":"Les anc\u00eatres de tous les oiseaux descendent d&rsquo;un coin de terre de l&rsquo;Am\u00e9rique du Sud"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p style=\"text-align: justify;\">Selon une d\u00e9couverte r\u00e9cente, tous les oiseaux contemporains proviennent d&rsquo;animaux ayant v\u00e9cu il y a 95 millions d\u2019ann\u00e9es dans une r\u00e9gion terrestre aux dimensions modestes qui faisait partie du continent ant\u00e9rieur \u00e0 l\u2019Am\u00e9rique du sud.<\/p>\n<p style=\"text-align: justify;\">Selon un article publi\u00e9 dans la revue Science Advances, les anc\u00eatres communs de tous les oiseaux contemporains vivaient \u00e0 l&rsquo;ouest du continent qui est par la suite devenu l&rsquo;Am\u00e9rique du sud. Au moment de la fin de l&rsquo;\u00e9poque des dinosaures, les oiseaux s&rsquo;\u00e9taient divis\u00e9s en trois groupes biologiques essentiels: Palaeognathae, Galloanserae et Neoaves.<\/p>\n<p style=\"text-align: justify;\">Ce sont ces trois groupes d&rsquo;oiseaux contemporains qui ont fait l&rsquo;objet d&rsquo;\u00e9tude des ornithologues. Les anc\u00eatres des oiseaux ont subi un essor de la diversit\u00e9 biologique apr\u00e8s la disparition rapide des dinosaures, il y a 66 millions d&rsquo;ann\u00e9es.<\/p><div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"2\" style=\"float: none; margin:10px 0 10px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n\n<p style=\"text-align: justify;\">Les chercheurs ont r\u00e9ussi \u00e0 obtenir des informations g\u00e9n\u00e9tiques depuis deux g\u00e8nes pr\u00e9sents chez 230 esp\u00e8ces diff\u00e9rentes d&rsquo;oiseaux. Les scientifiques ont \u00e9galement port\u00e9 leur attention sur des informations en provenance de 130 esp\u00e8ces d\u00e9j\u00e0 disparues. Tout cela leur a permis de suivre l&rsquo;\u00e9volution des oiseaux.<\/p>\n<p style=\"text-align: justify;\">La r\u00e9partition des oiseaux en trois groupes constitue un des pas importants de leur \u00e9volution. Par ailleurs, le passage des oiseaux \u00e0 la diversit\u00e9 biologique contemporaine, ainsi qu&rsquo;\u00e0 leur place dans les syst\u00e8mes \u00e9cologiques, pourrait s&rsquo;expliquer par une catastrophe g\u00e9ologique de l&rsquo;\u00e9poque.<\/p>\n<p style=\"text-align: justify;\">Les oiseaux ont ensuite occup\u00e9 les vastes territoires du monde.<\/p>\n<p style=\"text-align: justify;\">source : <a href=\"http:\/\/fr.sputniknews.com\/\" target=\"_blank\">http:\/\/fr.sputniknews.com\/<\/a><\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"10266\">(453)<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Selon une d\u00e9couverte r\u00e9cente, tous les oiseaux contemporains proviennent d&rsquo;animaux ayant v\u00e9cu il y a 95 millions d\u2019ann\u00e9es dans une&#8230;<\/p>\n","protected":false},"author":1,"featured_media":10267,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"ngg_post_thumbnail":0,"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":"Les #anc\u00eatres de tous les #oiseaux descendent d'un coin de terre de l'Am\u00e9rique du Sud @laterredufutur","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":[33],"tags":[954,3700,2438,1746,5366,2513,251,436],"class_list":["post-10266","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","tag-adn","tag-amerique-du-sud","tag-archeologie","tag-genetique","tag-oiseau","tag-oiseaux","tag-origine","tag-passe","wpcat-33-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/01\/oiseaux.jpg?fit=910%2C366&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-2FA","jetpack-related-posts":[{"id":17216,"url":"https:\/\/www.laterredufutur.com\/accueil\/quand-les-hommes-se-faisaient-manger-par-des-oiseaux-geants\/","url_meta":{"origin":10266,"position":0},"title":"Quand les hommes se faisaient manger par des oiseaux g\u00e9ants","author":"Admin","date":"27 novembre 2018","format":false,"excerpt":"Les scientifiques ont d\u00e9couvert les os d'un enfant de N\u00e9andertal qui avait \u00e9t\u00e9 mang\u00e9 par un oiseau g\u00e9ant. Les os des doigts semblent provenir d'un enfant \u00e2g\u00e9 de cinq \u00e0 sept ans. Si l'oiseau a attaqu\u00e9 l'enfant ou s'il a nettoy\u00e9 les os, ce n'est pas encore clair. Les vestiges\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/homme-de-neandertal.jpg?fit=737%2C490&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/homme-de-neandertal.jpg?fit=737%2C490&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/homme-de-neandertal.jpg?fit=737%2C490&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2018\/11\/homme-de-neandertal.jpg?fit=737%2C490&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":26176,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-traces-de-la-catastrophe-des-dinosaures-trouvees-dans-les-genes-des-oiseaux-actuels\/","url_meta":{"origin":10266,"position":1},"title":"Des traces de la catastrophe des dinosaures trouv\u00e9es dans les g\u00e8nes des oiseaux actuels","author":"Admin","date":"27 ao\u00fbt 2024","format":false,"excerpt":"Un ast\u00e9ro\u00efde s'est violemment \u00e9cras\u00e9 sur notre plan\u00e8te il y a quelque 66 millions d'ann\u00e9es et a chang\u00e9 le cours de la vie sur Terre. La r\u00e9action en cha\u00eene des changements survenus dans le monde entier a marqu\u00e9 la fin des jours des dinosaures qui y vivaient \u00e0 cette \u00e9poques.\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/08\/lasteroide-de-Chicxulub.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/08\/lasteroide-de-Chicxulub.jpg?fit=1024%2C1024&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/08\/lasteroide-de-Chicxulub.jpg?fit=1024%2C1024&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/08\/lasteroide-de-Chicxulub.jpg?fit=1024%2C1024&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":2634,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-foret-canadienne-sera-la-plus-grande-au-monde-dans-20-ans\/","url_meta":{"origin":10266,"position":2},"title":"La For\u00eat Canadienne sera la plus grande au monde dans 20 ans","author":"Admin","date":"30 d\u00e9cembre 2004","format":false,"excerpt":"45 % du territoire Canadien est forestier. Les for\u00eats du Canada font partie int\u00e9grante des cycles \u00e9cologiques \u00e0 l'\u00e9chelle plan\u00e9taire, car elles repr\u00e9sentent 10\u00a0p. 100 des for\u00eats du monde; de plus, environ 25\u00a0p. 100 des eaux douces de la plan\u00e8te proviennent de bassins versants situ\u00e9s au Canada. Enfin, les for\u00eats\u2026","rel":"","context":"Dans &quot;Ecologie&quot;","block_context":{"text":"Ecologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/ecologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/spaw\/images\/cwf02.jpeg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2941,"url":"https:\/\/www.laterredufutur.com\/accueil\/des-martinets-deboussoles\/","url_meta":{"origin":10266,"position":3},"title":"Des martinets d\u00e9boussol\u00e9s ?","author":"Admin","date":"13 juin 2005","format":false,"excerpt":"Les martinets sont des migrateurs transsahariens qui viennent chaque ann\u00e9e se reproduire en Europe. Ces grands voyageurs parcourent des milliers de kilom\u00e8tres chaque ann\u00e9e\u00a0; ils quittent l'Afrique o\u00f9 ils passent l'hiver, et viennent en Europe pour prendre leurs quartiers d'\u00e9t\u00e9. En un mois, avec une vitesse moyenne de 40 km\/h\u2026","rel":"","context":"Dans &quot;Ecologie&quot;","block_context":{"text":"Ecologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/ecologie\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":21481,"url":"https:\/\/www.laterredufutur.com\/accueil\/quelle-est-la-premiere-espece-animale-que-les-humains-ont-conduit-a-lextinction\/","url_meta":{"origin":10266,"position":4},"title":"Quelle est la premi\u00e8re esp\u00e8ce animale que les humains ont conduit \u00e0 l&rsquo;extinction ?","author":"Admin","date":"16 octobre 2020","format":false,"excerpt":"Le dodo ?\u00a0Le mammouth laineux ?\u00a0... \u00c0 la fin des ann\u00e9es 1600, dans les for\u00eats luxuriantes de l'\u00eele Maurice, le tout dernier dodo prenait son dernier souffle.\u00a0Apr\u00e8s des si\u00e8cles de vie sans soucis dans les sous-bois tropicaux, cette esp\u00e8ce a connu sa fin pr\u00e9matur\u00e9e avec les humains, arriv\u00e9s sur l'\u00eele\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/stegodon.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/stegodon.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/stegodon.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/stegodon.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2020\/10\/stegodon.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":26457,"url":"https:\/\/www.laterredufutur.com\/accueil\/lancien-pont-terrestre-qui-reliait-la-siberie-aux-etats-unis-netait-pas-ce-quil-semblait-etre-selon-des-scientifiques\/","url_meta":{"origin":10266,"position":5},"title":"L&rsquo;ancien \u00ab pont terrestre \u00bb qui reliait la Sib\u00e9rie aux \u00c9tats-Unis n&rsquo;\u00e9tait pas ce qu&rsquo;il semblait \u00eatre, selon des scientifiques","author":"Admin","date":"15 d\u00e9cembre 2024","format":false,"excerpt":"Le paysage mar\u00e9cageux du pont terrestre de B\u00e9ring a peut-\u00eatre permis \u00e0 certains animaux de l'\u00e8re glaciaire de traverser facilement, tandis que d'autres sont rest\u00e9s en Asie. Le pont terrestre de B\u00e9ring qui reliait la Sib\u00e9rie \u00e0 l'Alaska pendant l'\u00e8re glaciaire \u00e9tait plut\u00f4t une tourbi\u00e8re de B\u00e9ring, selon de nouvelles\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/12\/pont-terrestre-de-Bering-aurait-ete-en-grande-partie-constitue-de-tourbieres.webp?fit=650%2C366&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/12\/pont-terrestre-de-Bering-aurait-ete-en-grande-partie-constitue-de-tourbieres.webp?fit=650%2C366&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2024\/12\/pont-terrestre-de-Bering-aurait-ete-en-grande-partie-constitue-de-tourbieres.webp?fit=650%2C366&ssl=1&resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/10266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=10266"}],"version-history":[{"count":1,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/10266\/revisions"}],"predecessor-version":[{"id":10268,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/10266\/revisions\/10268"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/10267"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=10266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=10266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=10266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}