{"id":22277,"date":"2021-04-06T13:51:34","date_gmt":"2021-04-06T12:51:34","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=22277"},"modified":"2021-04-06T13:57:11","modified_gmt":"2021-04-06T12:57:11","slug":"la-comete-qui-a-tue-les-dinosaures-a-donne-naissance-a-la-foret-amazonienne","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/la-comete-qui-a-tue-les-dinosaures-a-donne-naissance-a-la-foret-amazonienne\/","title":{"rendered":"La com\u00e8te qui a tu\u00e9 les dinosaures a donn\u00e9 naissance \u00e0 la for\u00eat amazonienne"},"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>Les for\u00eats tropicales d&rsquo;aujourd&rsquo;hui ont vu le jour en raison de l&rsquo;\u00e9norme impact de la com\u00e8te qui aurait an\u00e9anti les dinosaures.<\/p>\n<p>Avant que la com\u00e8te ne frappe la p\u00e9ninsule du Yucat\u00e1n, dans l&rsquo;actuel Mexique, les for\u00eats tropicales d&rsquo;Am\u00e9rique du Sud \u00e9taient constitu\u00e9es d&rsquo;une v\u00e9g\u00e9tation tr\u00e8s diff\u00e9rente avec l&rsquo;abondance de plantes \u00e0 fleurs qu&rsquo;elles contiennent aujourd&rsquo;hui.<\/p>\n<p>\u00abSi vous reveniez \u00e0 la veille de la chute de la com\u00e8te, la for\u00eat aurait une canop\u00e9e ouverte avec beaucoup de foug\u00e8res, de nombreux conif\u00e8res et dinosaures\u00bb, explique Carlos Jaramillo du Smithsonian Tropical Research Institute au Panama. \u00abLa for\u00eat que nous avons aujourd&rsquo;hui est le produit d&rsquo;un \u00e9v\u00e9nement d&rsquo;il y a 66 millions d&rsquo;ann\u00e9es.\u00bb<\/p>\n<p>Jaramillo et ses coll\u00e8gues ont analys\u00e9 des dizaines de milliers d&rsquo;\u00e9chantillons de pollen et de feuilles fossilis\u00e9s trouv\u00e9s dans le nord de l&rsquo;Am\u00e9rique du Sud et datant de la p\u00e9riode du Cr\u00e9tac\u00e9 juste avant l&rsquo;impact de la com\u00e8te, et juste apr\u00e8s, \u00e0 l&rsquo;\u00e9poque pal\u00e9oc\u00e8ne.<\/p>\n<p>Ils ont constat\u00e9 que la diversit\u00e9 v\u00e9g\u00e9tale avait diminu\u00e9 de 45% apr\u00e8s l&rsquo;impact et avait mis 6 millions d&rsquo;ann\u00e9es \u00e0 se r\u00e9tablir. Les piq\u00fbres d&rsquo;insectes sur les feuilles fossilis\u00e9es ont montr\u00e9 que la diversit\u00e9 des insectes avait \u00e9galement chut\u00e9.<\/p>\n<p>Les for\u00eats tropicales d&rsquo;Am\u00e9rique du Sud ont chang\u00e9 \u00e0 la suite de la catastrophe. La plupart des plantes \u00e0 c\u00f4nes et des foug\u00e8res ont disparu et les for\u00eats tropicales sont devenues domin\u00e9es par des plantes \u00e0 fleurs appel\u00e9es angiospermes. Une canop\u00e9e \u00e9paisse ne permettait qu&rsquo;\u00e0 un peu de lumi\u00e8re d&rsquo;atteindre le sol.<\/p>\n<figure id=\"attachment_22280\" aria-describedby=\"caption-attachment-22280\" style=\"width: 750px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"22280\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/la-comete-qui-a-tue-les-dinosaures-a-donne-naissance-a-la-foret-amazonienne\/impact-65millions-dannees\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees.jpg?fit=750%2C375&amp;ssl=1\" data-orig-size=\"750,375\" 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;1&quot;}\" data-image-title=\"impact-65millions-dann\u00e9es\" data-image-description=\"\" data-image-caption=\"&lt;p&gt;Lieu de l&amp;rsquo;impact de la com\u00e8te (nouvellement appel\u00e9e r\u00e9cemment), il y a 65 millions d&amp;rsquo;ann\u00e9es &lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees.jpg?fit=300%2C150&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees.jpg?fit=750%2C375&amp;ssl=1\" class=\"size-full wp-image-22280\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees.jpg?resize=750%2C375&#038;ssl=1\" alt=\"\" width=\"750\" height=\"375\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees.jpg?w=750&amp;ssl=1 750w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees.jpg?resize=300%2C150&amp;ssl=1 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><figcaption id=\"caption-attachment-22280\" class=\"wp-caption-text\">Lieu de l&rsquo;impact de la com\u00e8te (nouvellement appel\u00e9e r\u00e9cemment), il y a 65 millions d&rsquo;ann\u00e9es. Aujourd&rsquo;hui c&rsquo;est le nord du Yucatan au Mexique. Credit Images \u00a9 Ron Blakey \/ impact Terra Projects<\/figcaption><\/figure>\n<p>\u00abJe pense que la le\u00e7on num\u00e9ro un ici est l&rsquo;impr\u00e9visibilit\u00e9\u00bb, d\u00e9clare Ellen Currano de l&rsquo;Universit\u00e9 du Wyoming. \u00abLorsque vous avez ces perturbations majeures, elles changent les r\u00e8gles de l\u2019ensemble de l\u2019\u00e9cosyst\u00e8me.\u00bb<\/p>\n<p>Jaramillo et ses coll\u00e8gues sugg\u00e8rent qu&rsquo;il y a plusieurs raisons pour lesquelles l&rsquo;ast\u00e9ro\u00efde peut avoir caus\u00e9 ce changement majeur. D&rsquo;une part, l&rsquo;impact a probablement tu\u00e9 la plupart des grands dinosaures herbivores qui ont autrefois pi\u00e9tin\u00e9 et mang\u00e9 les niveaux inf\u00e9rieurs des for\u00eats.<\/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>De plus, les cendres qui se sont d\u00e9pos\u00e9es apr\u00e8s l&rsquo;impact peuvent avoir servi d&rsquo;engrais, cr\u00e9ant un sol riche en nutriments qui a favoris\u00e9 les angiospermes \u00e0 croissance rapide par rapport aux autres plantes. Les angiospermes semblent \u00e9galement avoir \u00e9t\u00e9 plus diversifi\u00e9es sur le plan \u00e9cologique avant l&rsquo;impact, ce qui aurait permis \u00e0 certains d&rsquo;entre eux de rebondir plus facilement par la suite.<\/p>\n<p>\u00abNous adorons la fa\u00e7on dont elle s&rsquo;est termin\u00e9e, cette for\u00eat incroyablement diversifi\u00e9e et vraiment structurellement complexe, mais en ce moment, nous vivons une extinction massive caus\u00e9e par les humains et, encore une fois, des \u00e9cosyst\u00e8mes entiers sont mis sur une diff\u00e9rente voie\u00bb, d\u00e9clare Bonnie Jacobs \u00e0 la Southern Methodist University au Texas.<\/p>\n<p>\u00abDans le cas de la for\u00eat tropicale humide, nous pourrions aimer le produit final, mais tous les animaux vivants au Cr\u00e9tac\u00e9 ne l&rsquo;ont pas fait\u00bb, dit-elle.<\/p>\n<p>Comprendre comment cet \u00e9v\u00e9nement majeur a fa\u00e7onn\u00e9 les for\u00eats tropicales peut nous aider \u00e0 mettre en perspective comment ces points chauds de la biodiversit\u00e9 r\u00e9agissent \u00e0 la d\u00e9forestation d&rsquo;aujourd&rsquo;hui et combien de temps ils pourraient prendre pour se r\u00e9tablir, dit Jaramillo.<\/p>\n<p>\u00abDans certains des endroits que nous avons \u00e9tudi\u00e9s, j&rsquo;ai pu voir sous mes yeux comment cette for\u00eat qui a mis 66 millions d&rsquo;ann\u00e9es \u00e0 se construire a disparu en un jour, et le taux de d\u00e9forestation est stup\u00e9fiant\u00bb, dit-il. \u00abNous savons d&rsquo;apr\u00e8s cette \u00e9tude qu&rsquo;il faut beaucoup de temps pour reconstruire ces diverses for\u00eats: vous ne pouvez pas abattre la for\u00eat et penser: &lsquo;Oh, demain je planterai plus d&rsquo;arbres.&rsquo; \u00a0\u00bb<\/p>\n<figure id=\"attachment_22283\" aria-describedby=\"caption-attachment-22283\" style=\"width: 879px\" class=\"wp-caption alignnone\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"22283\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/la-comete-qui-a-tue-les-dinosaures-a-donne-naissance-a-la-foret-amazonienne\/impact-65millions-dannees-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?fit=879%2C1100&amp;ssl=1\" data-orig-size=\"879,1100\" 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=\"impact-65millions-dann\u00e9es\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?fit=240%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?fit=639%2C800&amp;ssl=1\" class=\"wp-image-22283 size-full\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?resize=879%2C1100&#038;ssl=1\" alt=\"\" width=\"879\" height=\"1100\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?w=879&amp;ssl=1 879w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?resize=240%2C300&amp;ssl=1 240w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?resize=639%2C800&amp;ssl=1 639w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/impact-65millions-dannees-1.jpg?resize=768%2C961&amp;ssl=1 768w\" sizes=\"auto, (max-width: 879px) 100vw, 879px\" \/><figcaption id=\"caption-attachment-22283\" class=\"wp-caption-text\">Source &#8211; \u00a9 2014 D&rsquo;apr\u00e8s R. Blakey<\/figcaption><\/figure>\n<p>adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\">Terra Projects<\/a><\/p>\n<p>sources : <a href=\"https:\/\/www.newscientist.com\/article\/2273596-asteroid-that-killed-the-dinosaurs-gave-birth-to-the-amazon-rainforest\/#ixzz6rG4kddKu\" target=\"_blank\" rel=\"noopener\">https:\/\/www.newscientist.com\/<\/a> \/ <a href=\"https:\/\/science.sciencemag.org\/content\/372\/6537\/63\" target=\"_blank\" rel=\"noopener\">https:\/\/science.sciencemag.org\/<\/a> \/<\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"22277\">(349)<\/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>Les for\u00eats tropicales d&rsquo;aujourd&rsquo;hui ont vu le jour en raison de l&rsquo;\u00e9norme impact de la com\u00e8te qui aurait an\u00e9anti les&#8230;<\/p>\n","protected":false},"author":1,"featured_media":22279,"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":"La #com\u00e8te qui a tu\u00e9 les #dinosaures a donn\u00e9 naissance \u00e0 la #for\u00eat amazonienne @laterredufutur.com Terra Projects","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":[33,21],"tags":[1872,118,1521,1206,314],"class_list":["post-22277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","category-evenement-brutal","tag-amazonie","tag-asteroide","tag-comete","tag-dinosaures","tag-foret","wpcat-33-id","wpcat-21-id"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/04\/comete-asteroide.jpg?fit=1000%2C667&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p631RN-5Nj","jetpack-related-posts":[{"id":22819,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-meteorite-qui-a-aneanti-les-dinosaures-est-liee-a-une-population-dasteroides-primitifs-sombres\/","url_meta":{"origin":22277,"position":0},"title":"La m\u00e9t\u00e9orite qui a an\u00e9anti les dinosaures est li\u00e9e \u00e0 une population d'\u00a0\u00bbast\u00e9ro\u00efdes primitifs sombres\u00a0\u00bb.","author":"Admin","date":"30 juillet 2021","format":false,"excerpt":"Il y a environ 66 millions d'ann\u00e9es, un objet gigantesque s'est \u00e9cras\u00e9 sur la Terre, d\u00e9clenchant une extinction massive qui a \u00e9limin\u00e9 les dinosaures. Aujourd'hui, des scientifiques du Southwest Research Institute affirment avoir remont\u00e9 la piste du coupable jusqu'\u00e0 son point d'origine, l'identifiant comme un \"ast\u00e9ro\u00efde primitif sombre\". La fin\u2026","rel":"","context":"Dans &quot;Espace&quot;","block_context":{"text":"Espace","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/espace\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/asteroide-impact-terre.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\/2021\/07\/asteroide-impact-terre.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/asteroide-impact-terre.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/asteroide-impact-terre.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/07\/asteroide-impact-terre.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":22012,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-comete-qui-a-aneanti-les-dinosaures-venait-du-nuage-de-oort\/","url_meta":{"origin":22277,"position":1},"title":"La com\u00e8te qui a an\u00e9anti les dinosaures venait du nuage de Oort","author":"Admin","date":"17 f\u00e9vrier 2021","format":false,"excerpt":"Il y a 66 millions d\u2019ann\u00e9e, un immense objet a frapp\u00e9 la Terre, y provoquant l\u2019extinction d\u2019une grande partie de la vie, dont celle des dinosaures. Vous avez probablement appris \u00e0 l\u2019\u00e9cole qu\u2019il s\u2019agissait d\u2019un ast\u00e9ro\u00efde, mais selon une nouvelle th\u00e9orie, il s\u2019agissait en r\u00e9alit\u00e9 un fragment de com\u00e8te, venue\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\/2021\/02\/comete-dinosaure.jpg?fit=1000%2C749&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/comete-dinosaure.jpg?fit=1000%2C749&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/comete-dinosaure.jpg?fit=1000%2C749&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/02\/comete-dinosaure.jpg?fit=1000%2C749&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":23772,"url":"https:\/\/www.laterredufutur.com\/accueil\/il-y-a-13-000-ans-une-tempete-de-feu-a-balaye-10-de-la-surface-de-la-terre-declenchant-une-periode-glaciaire\/","url_meta":{"origin":22277,"position":2},"title":"Il y a 13 000 ans, une temp\u00eate de feu a balay\u00e9 10 % de la surface de la Terre, d\u00e9clenchant une p\u00e9riode glaciaire","author":"Admin","date":"24 f\u00e9vrier 2022","format":false,"excerpt":"Il y a environ 12 800 ans, un dixi\u00e8me de la surface de la Terre s'est soudainement retrouv\u00e9 recouvert de tr\u00e8s violents incendies. Cette temp\u00eate de feu, comparable \u00e0 celle qui a an\u00e9anti les dinosaures, a probablement \u00e9t\u00e9 provoqu\u00e9e par les fragments d'une com\u00e8te d'environ 100 kilom\u00e8tres de diam\u00e8tre. En\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\/2022\/02\/feu-incendies.jpg?fit=960%2C640&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/02\/feu-incendies.jpg?fit=960%2C640&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/02\/feu-incendies.jpg?fit=960%2C640&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2022\/02\/feu-incendies.jpg?fit=960%2C640&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":22664,"url":"https:\/\/www.laterredufutur.com\/accueil\/limpact-dune-comete-pourrait-avoir-declenche-un-changement-de-civilisation\/","url_meta":{"origin":22277,"position":3},"title":"L&rsquo;impact d&rsquo;une com\u00e8te pourrait avoir d\u00e9clench\u00e9 un changement de civilisation","author":"Admin","date":"24 juin 2021","format":false,"excerpt":"Selon une \u00e9tude, un groupe de fragments d'une com\u00e8te qui aurait frapp\u00e9 la Terre il y a pr\u00e8s de 13 000 ans pourrait avoir fa\u00e7onn\u00e9 les origines de la civilisation humaine. Selon les chercheurs, cet impact cosmique, probablement le plus d\u00e9vastateur depuis l'extinction des dinosaures, semble co\u00efncider avec des changements\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\/2021\/06\/cratere-grands-lacs.jpg?fit=1046%2C700&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/06\/cratere-grands-lacs.jpg?fit=1046%2C700&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/06\/cratere-grands-lacs.jpg?fit=1046%2C700&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/06\/cratere-grands-lacs.jpg?fit=1046%2C700&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":26910,"url":"https:\/\/www.laterredufutur.com\/accueil\/decouvrez-la-reconstitution-de-lhabitat-des-dinosaures-qui-vivaient-en-antarctique-il-y-a-120-millions-dannees\/","url_meta":{"origin":22277,"position":4},"title":"D\u00e9couvrez la reconstitution de l&rsquo;habitat des dinosaures qui vivaient en Antarctique il y a 120 millions d&rsquo;ann\u00e9es","author":"Admin","date":"20 mai 2025","format":false,"excerpt":"Les sites fossiles d'Australie contiennent du pollen et des spores datant de l'\u00e9poque des dinosaures, lorsque l'\u00eele se trouvait \u00e0 cheval sur le cercle antarctique. Aujourd'hui, des scientifiques ont recr\u00e9\u00e9 l'habitat des \u00ab dinosaures polaires \u00bb \u00e0 l'aide de ces vestiges botaniques. L'Australie est aujourd'hui plut\u00f4t isol\u00e9e, mais il y\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\/2021\/11\/antarctique-et-forets.jpg?fit=1200%2C675&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/antarctique-et-forets.jpg?fit=1200%2C675&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/antarctique-et-forets.jpg?fit=1200%2C675&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/antarctique-et-forets.jpg?fit=1200%2C675&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2021\/11\/antarctique-et-forets.jpg?fit=1200%2C675&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":19968,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-impact-meteoritique-aurait-il-declenche-une-extinction-danimaux-a-lere-glaciaire\/","url_meta":{"origin":22277,"position":5},"title":"Un impact m\u00e9t\u00e9oritique aurait il d\u00e9clench\u00e9 une extinction d&rsquo;animaux \u00e0 l&rsquo;\u00e8re glaciaire ?","author":"Admin","date":"12 d\u00e9cembre 2019","format":false,"excerpt":"Une th\u00e9orie controvers\u00e9e sugg\u00e8re qu'un corps extraterrestre s'est \u00e9cras\u00e9 sur Terre il y a pr\u00e8s de 13 000 ans a caus\u00e9 l'extinction de nombreux gros animaux et d'un d\u00e9clin probable de la population chez les humains de cette \u00e9poque. Cette th\u00e9orie gagne du terrain partout dans le monde dans les\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\/2019\/11\/dryas-meteorite.jpg?fit=1200%2C770&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/dryas-meteorite.jpg?fit=1200%2C770&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/dryas-meteorite.jpg?fit=1200%2C770&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/dryas-meteorite.jpg?fit=1200%2C770&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/11\/dryas-meteorite.jpg?fit=1200%2C770&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22277","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=22277"}],"version-history":[{"count":4,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22277\/revisions"}],"predecessor-version":[{"id":22285,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/22277\/revisions\/22285"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/22279"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=22277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=22277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=22277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}