{"id":45339,"date":"2026-10-08T08:57:00","date_gmt":"2026-10-08T06:57:00","guid":{"rendered":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/?p=45339"},"modified":"2026-10-09T07:34:23","modified_gmt":"2026-10-09T05:34:23","slug":"dismoipourquoi-les-animaux-peuvent-manger-de-lherbe-des-branches-mais-pas-nous","status":"publish","type":"post","link":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/2026\/10\/08\/dismoipourquoi-les-animaux-peuvent-manger-de-lherbe-des-branches-mais-pas-nous\/","title":{"rendered":"[#DisMoiPourquoi] les animaux peuvent manger de l\u2019herbe, des branches, mais pas nous ?"},"content":{"rendered":"<div class=\"intext\"> Titouan, 11 ans. Coll\u00e8ge des Caillols, \u00e0 Marseille\n              <\/div>\n<div class=\"paragraph\">\n<p>Les \u00eatres vivants ne fonctionnent tous de la m\u00eame mani\u00e8re. C\u2019est le r\u00e9sultat d\u2019une longue adaptation avec l\u2019environnement que l\u2019on appelle co-\u00e9volution. Chez les mammif\u00e8res, qui regroupent les humains, les vaches, les chiens, les lapins et m\u00eame les baleines, certains peuvent se nourrir d\u2019herbe et de branches et pas d\u2019autres. Cette diff\u00e9rence s\u2019explique par le fonctionnement des organes qui permettent la digestion.<\/p>\n<p>L\u2019herbe et les branches sont compos\u00e9es de cellulose, une mati\u00e8re qui n\u00e9cessite un \u00e9quipement sp\u00e9cial pour \u00eatre transform\u00e9e en \u00e9nergie. Il faut des dents qui peuvent couper (incisives) et broyer (molaires) pour d\u00e9composer m\u00e9caniquement la cellulose. Il y a ensuite de nombreuses transformations successives qui se d\u00e9roulent dans le ventre, notamment gr\u00e2ce \u00e0 des bact\u00e9ries et des champignons.<\/p>\n<p>Les humains ne disposent pas de tous les \u00e9l\u00e9ments, donc ils ne se nourrissent pas d\u2019herbe et de branche. Par contre, ils mangent des aliments riches en cellulose que l\u2019on appelle alors fibres en nutrition.\u00a0\u00bb<\/p>\n<\/p><\/div>\n<div class=\"paragraph\">\n<p><b>Mika\u00ebl AKIMOWICZ, ma\u00eetre de conf\u00e9rences au Laboratoire d\u2019\u00c9conomie et de Sociologie du Travail (CNRS\/AMU)<\/b><\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"Les &ecirc;tres vivants ne fonctionnent tous de la m&ecirc;me mani&egrave;re. C&rsquo;est le r&eacute;sultat d&rsquo;une longue adaptation avec l&rsquo;environnement que l&rsquo;on appelle co-&eacute;volution. Chez les mammif&egrave;res, qui &#8230;","protected":false},"author":1,"featured_media":45340,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[918,3926,3925,20],"tags":[2543,1617,182,4041,10,2482,952,2714,6560,2545,172,5101,16,6553,1095,1946,420],"news-destination":[3944],"news-source":[475],"is_homepage":[],"ta_other":[],"class_list":["post-45339","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-animaux","tag-bacteries","tag-bouches-du-rhone","tag-cnrs","tag-conferences","tag-dents","tag-digestion","tag-dis-moi-pourquoi","tag-les-petits-debrouillards","tag-mammiferes","tag-marseille","tag-mikael-akimowicz","tag-partenariat","tag-questions","tag-scientifique","news-destination-homepage","news-source-website"],"_links":{"self":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/45339","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=45339"}],"version-history":[{"count":1,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/45339\/revisions"}],"predecessor-version":[{"id":45341,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/posts\/45339\/revisions\/45341"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media\/45340"}],"wp:attachment":[{"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/media?parent=45339"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/categories?post=45339"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/tags?post=45339"},{"taxonomy":"news-destination","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-destination?post=45339"},{"taxonomy":"news-source","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/news-source?post=45339"},{"taxonomy":"is_homepage","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/is_homepage?post=45339"},{"taxonomy":"ta_other","embeddable":true,"href":"https:\/\/euapp01.newsmemory.com\/lamarseillaise\/news\/wp-json\/wp\/v2\/ta_other?post=45339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}