{"id":96663,"date":"2025-03-24T17:22:51","date_gmt":"2025-03-24T17:22:51","guid":{"rendered":"https:\/\/www.africa-press.net\/cotedivoire\/politique\/lorigine-du-saut-des-kangourous-eclairee-par-un-petit-marsupial"},"modified":"2025-03-24T17:22:51","modified_gmt":"2025-03-24T17:22:51","slug":"lorigine-du-saut-des-kangourous-eclairee-par-un-petit-marsupial","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/cotedivoire\/toutes-les-actualites\/lorigine-du-saut-des-kangourous-eclairee-par-un-petit-marsupial","title":{"rendered":"L’origine du saut des kangourous \u00e9clair\u00e9e par un petit marsupial"},"content":{"rendered":"

Africa-Press – C\u00f4te d’Ivoire. <\/strong><\/span>Pourquoi le kangourou saute-t-il ? Des chercheurs pensent avoir identifie\u0301 une piste gra\u0302ce a\u0300 l’un de ses cousins, un petit marsupial des fore\u0302ts humides isole\u0301es d’Australie. Les kangourous et les wallabies sont les deux seuls animaux de grande taille a\u0300 se de\u0301placer en bondissant sur leurs deux pattes, expliquent des scientifiques de l’universite\u0301 Flinders, dans le sud de l’Australie, et l’on ignore pour quelle raison.<\/p>\n

Les chercheurs, dont les travaux ont e\u0301te\u0301 publie\u0301s le 20 mars dans la revue scientifique Australian Mammalogy, pensent avoir de\u0301cele\u0301 un indice chez le kangourou-rat musque\u0301, un marsupial d’une vingtaine de centime\u0300tres de long, lointain cousin des kangourous et vivant dans les fore\u0302ts humides d’Australie.<\/p>\n

Cet animal est le seul de la famille des macropodide\u0301s (dont font partie les kangourous et les wallabies) a\u0300 ne pas s’adonner aux bonds, rappelle la chercheuse Amy Tschirn. \u00ab\u00a0En tant que seul macropodide\u0301 qui ne saute pas, le kangourou-rat musque\u0301 apporte un e\u0301clairage de\u0301terminant pour savoir comment et quand l’emble\u0301matique moyen de locomotion par le bond a e\u0301volue\u0301 en Australie\u00a0\u00bb, exposent les chercheurs.<\/p>\n

Pattes avant au sol<\/b><\/p>\n

Ces scientifiques ont suivi la trace de ces petits mammife\u0300res a\u0300 travers les fore\u0302ts humides de l’extre\u0302me nord de l’Etat du Queensland (nord-ouest). Ils ont pu observer que ces quadrupe\u0300des se de\u0301plac\u0327aient en sautillant certes gra\u0302ce a\u0300 leurs pattes arrie\u0300re mais, pre\u0301cision importante, en gardant leurs pattes avant au sol.<\/p>\n

Cette de\u0301couverte sugge\u0300re l’existence d’une e\u0301tape au cours de l’e\u0301volution, entre la marche a\u0300 quatre pattes et le de\u0301placement par bonds sur deux pattes, expliquent les chercheurs. \u00ab\u00a0Peut-e\u0302tre que cela a commence\u0301 avec un ance\u0302tre qui se mouvait sur ses quatre pattes comme les autres marsupiaux, puis un animal qui sautait comme les (kangourous-rats musque\u0301s), et enfin que cela e\u0301volue\u0301 avec ces kangourous au bond emble\u0301matique que l’on observe aujourd’hui en Australie.\u00a0\u00bb<\/p>\n

Parmi les animaux pesant plus de 5 kg, kangourous et wallabies sont les deux seuls animaux se de\u0301plac\u0327ant en bondissant, d’apre\u0300s les scientifiques. Plusieurs rongeurs plus petits sont e\u0301galement capables de sauter. Les chercheurs disent espe\u0301rer de\u0301couvrir des fossiles de lointains marsupiaux pour mieux comprendre la trajectoire e\u0301volutive des kangourous d’aujourd’hui.<\/p>\n

Pour plus d’informations et d’analyses sur la C\u00f4te d’Ivoire<\/span>, suivez Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – C\u00f4te d’Ivoire. Pourquoi le kangourou saute-t-il ? Des chercheurs pensent avoir identifie\u0301 une piste gra\u0302ce a\u0300 l’un de ses cousins, un petit marsupial des fore\u0302ts humides isole\u0301es d’Australie. Les kangourous et les wallabies sont les deux seuls animaux de grande taille a\u0300 se de\u0301placer en bondissant sur leurs deux pattes, expliquent des scientifiques […]<\/p>\n","protected":false},"author":82,"featured_media":96662,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[37],"class_list":["post-96663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-cote-divoire-2"],"yoast_head":"\nL'origine du saut des kangourous \u00e9clair\u00e9e par un petit marsupial - C\u00f4te d'Ivoire<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/cotedivoire\/politique\/lorigine-du-saut-des-kangourous-eclairee-par-un-petit-marsupial\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L'origine du saut des kangourous \u00e9clair\u00e9e par un petit marsupial\" \/>\n<meta property=\"og:description\" content=\"Africa-Press – C\u00f4te d’Ivoire. Pourquoi le kangourou saute-t-il ? Des chercheurs pensent avoir identifie\u0301 une piste gra\u0302ce a\u0300 l’un de ses cousins, un petit marsupial des fore\u0302ts humides isole\u0301es d’Australie. 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