{"id":47187,"date":"2026-10-23T08:57:00","date_gmt":"2026-10-23T06:57:00","guid":{"rendered":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/?p=47187"},"modified":"2026-10-24T08:16:17","modified_gmt":"2026-10-24T06:16:17","slug":"dismoipourquoi-les-fourmis-trouvent-toujours-le-chemin-du-sucre-elles-ont-un-gps-dans-leur-tete","status":"publish","type":"post","link":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/2026\/10\/23\/dismoipourquoi-les-fourmis-trouvent-toujours-le-chemin-du-sucre-elles-ont-un-gps-dans-leur-tete\/","title":{"rendered":"[#DisMoiPourquoi] les fourmis trouvent toujours le chemin du sucre, elles ont un GPS dans leur t\u00eate&nbsp;?"},"content":{"rendered":"<div class=\"intext\"> Oscar, \u00e9l\u00e8ve de CM1 \u00e0 l\u2019\u00e9cole Jean-Giono, \u00e0 Boll\u00e8ne\n              <\/div>\n<div class=\"paragraph\">\n<p>Les fourmis sont tr\u00e8s performantes pour trouver du sucre, mais aussi tous les aliments dont elles ont besoin. Elles n\u2019utilisent pas un GPS, mais leurs antennes qui leur permettent de sentir comme nous le faisons avec notre nez. Mais leur odorat n\u2019est efficace qu\u2019\u00e0 quelques centim\u00e8tres ou quelques m\u00e8tres. Ce n\u2019est donc pas suffisant si la nourriture est \u00e9loign\u00e9e du nid des fourmis. Alors la reine des fourmis envoie des \u00ab\u00a0\u00e9claireuses\u00a0\u00bb qui vont explorer au hasard les parties \u00e9loign\u00e9es de la colonie. Lorsqu\u2019une fourmi trouve de la nourriture, elle revient au nid en laissant derri\u00e8re elle, sur le sol, des marques odorantes sous la forme de petites gouttes s\u00e9cr\u00e9t\u00e9es par une glande sp\u00e9ciale de son abdomen. Comme le petit Poucet, elle balise son chemin\u00a0! En rentrant au nid les autres fourmis suivront les marques odorantes qu\u2019elle a laiss\u00e9es pour retrouver \u00e0 coup s\u00fbr la nourriture. Et plus les fourmis empruntent ce chemin, plus son odeur sera marqu\u00e9e et plus il y aura de fourmis qui la suivront. Et voil\u00e0 comment en un clin d\u2019\u0153il des centaines de fourmis trouvent de la nourriture. C\u2019est un syst\u00e8me tr\u00e8s efficace qui leur a permis de survivre pendant plus de 100\u00a0millions d\u2019ann\u00e9es\u00a0!<\/p>\n<p><b>J\u00e9r\u00f4me ORGEAS. Ma\u00eetre de conf\u00e9rences en \u00e9cologie et entomologiste \u00e0 Aix Marseille Universit\u00e9 et \u00e0 l\u2019IMBE.<\/b><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"Les fourmis sont tr&egrave;s performantes pour trouver du sucre, mais aussi tous les aliments dont elles ont besoin. Elles n&rsquo;utilisent pas un GPS, mais leurs antennes qui leur permettent de sentir comme nous le faisons avec notre nez. Mais &#8230;","protected":false},"author":1,"featured_media":47188,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[918,3926,3925,20],"tags":[2543,1617,411,1434,57,2260,6573,377,172,1946,1592,1058,353,3221,171],"news-destination":[3944],"news-source":[475],"is_homepage":[],"ta_other":[],"class_list":["post-47187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accueil","category-accueil-merge","category-accueil-third","category-societe","tag-dismoipourquoi","tag-amu","tag-ecoles","tag-ecologie","tag-enfants","tag-fourmi","tag-imbe","tag-insectes","tag-les-petits-debrouillards","tag-questions","tag-recherche","tag-science","tag-sciences","tag-universite-aix-marseille","tag-vaucluse","news-destination-homepage","news-source-website"],"_links":{"self":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/47187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/comments?post=47187"}],"version-history":[{"count":1,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/47187\/revisions"}],"predecessor-version":[{"id":47189,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/47187\/revisions\/47189"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media\/47188"}],"wp:attachment":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media?parent=47187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/categories?post=47187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/tags?post=47187"},{"taxonomy":"news-destination","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-destination?post=47187"},{"taxonomy":"news-source","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-source?post=47187"},{"taxonomy":"is_homepage","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/is_homepage?post=47187"},{"taxonomy":"ta_other","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/ta_other?post=47187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}