{"id":57938,"date":"2023-12-12T12:00:00","date_gmt":"2023-12-12T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/cameroun\/?p=57938"},"modified":"2023-12-12T11:27:50","modified_gmt":"2023-12-12T11:27:50","slug":"quel-age-a-la-plus-vieille-tortue-du-monde","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/cameroun\/toutes-les-actualites\/quel-age-a-la-plus-vieille-tortue-du-monde","title":{"rendered":"Quel \u00e2ge a la plus vieille tortue du monde ?"},"content":{"rendered":"

Africa-Press – Cameroun. <\/strong><\/span>La tortue la plus a\u0302ge\u0301e du monde est une tortue ge\u0301ante des Seychelles connue sous le nom de Jonathan. Elle a re\u0301cemment ce\u0301le\u0301bre\u0301 son 191e anniversaire, prolongeant ainsi son titre de plus vieil animal terrestre vivant.<\/p>\n

Une tortue record<\/p>\n

Jonathan de\u0301tient actuellement deux records du monde Guinness: celui du plus ancien animal terrestre vivant et du plus ancien che\u0301lonien (un ordre comprenant les tortues terrestres, les tortues et les tortues marines).<\/p>\n

Jonathan re\u0301side sur l\u2019i\u0302le isole\u0301e de Sainte-He\u0301le\u0300ne, dans l\u2019Atlantique Sud, depuis 1882. Il avait e\u0301te\u0301 offert au gouverneur de l\u2019e\u0301poque. Son a\u0302ge a e\u0301te\u0301 confirme\u0301 par une vieille photographie datant de 1882-1886, montrant la tortue qui broute dans les jardins de la re\u0301sidence du gouverneur de Sainte-He\u0301le\u0300ne a\u0300 l\u2019e\u0301poque.<\/p>\n

Photo de 1886 dans laquelle apparai\u0302t Jonathan, un prisonnier et son garde. Cre\u0301dits: Wikimedia Commons\/Photographe inconnu<\/p>\n

Bien qu\u2019elle ait e\u0301te\u0301 initialement identifie\u0301e comme une tortue ge\u0301ante d\u2019Aldabra, des analyses ulte\u0301rieures ont sugge\u0301re\u0301 qu\u2019il s\u2019agirait pluto\u0302t d\u2019une tortue ge\u0301ante rare des Seychelles. En ge\u0301ne\u0301ral, ces tortues ont une espe\u0301rance de vie moyenne de 150 ans, mais Jonathan reste en bonne sante\u0301 malgre\u0301 sa cataracte et la perte de son odorat. A\u0300 l\u2019occasion de son anniversaire, le ve\u0301te\u0301rinaire de Sainte-He\u0301le\u0300ne, Joe Hollins, a souligne\u0301 la robustesse de l\u2019animal, ainsi que son bon appe\u0301tit et sa forte libido. En effet, bien qu\u2019aveugle, Jonathan continue de manifester un inte\u0301re\u0302t pour l\u2019accouplement avec les tortues avec lesquelles il partage son espace.<\/p>\n

Comment expliquer une telle espe\u0301rance de vie ?<\/p>\n

Les tortues, et en particulier les tortues ge\u0301antes, be\u0301ne\u0301ficient d\u2019une espe\u0301rance de vie exceptionnellement longue en raison de plusieurs facteurs biologiques. D\u2019une part, nous savons que ces animaux ont un me\u0301tabolisme lent, ce qui signifie qu\u2019ils bru\u0302lent l\u2019e\u0301nergie a\u0300 un rythme beaucoup plus lent que de nombreuses autres espe\u0300ces. Cette caracte\u0301ristique est souvent associe\u0301e a\u0300 une vie plus longue, car elle re\u0301duit l\u2019usure sur les organes internes au fil du temps.<\/p>\n

Ces animaux, et notamment les espe\u0300ces terrestres, vivent e\u0301galement souvent dans des environnements stables et pre\u0301visibles. Ils sont donc moins soumis aux variations environnementales et aux pre\u0301dateurs, cre\u0301ant des conditions propices a\u0300 une vie plus longue. En outre, ces reptiles ont de\u0301veloppe\u0301 des adaptations physiologiques qui contribuent a\u0300 leur longe\u0301vite\u0301. Par exemple, certaines espe\u0300ces peuvent survivre pendant de longues pe\u0301riodes sans nourriture ni eau, ce qui les aide a\u0300 traverser des pe\u0301riodes difficiles.<\/p>\n

Les tortues ont e\u0301galement souvent des strate\u0301gies reproductives qui impliquent une reproduction moins fre\u0301quente, mais une survie accrue de la proge\u0301niture. Cette approche contribue a\u0300 une longue dure\u0301e de vie, car elle met l\u2019accent sur la survie a\u0300 long terme pluto\u0302t que sur la reproduction rapide.<\/p>\n

Enfin, notez que certaines ont aussi la capacite\u0301 de re\u0301ge\u0301ne\u0301rer des parties de leur corps, y compris des organes vitaux comme le c\u0153ur et le foie. Cette capacite\u0301 de re\u0301ge\u0301ne\u0301ration pourrait jouer un ro\u0302le dans leur longe\u0301vite\u0301 en permettant la re\u0301paration des tissus endommage\u0301s au fil du temps.<\/p>\n

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

Africa-Press – Cameroun. La tortue la plus a\u0302ge\u0301e du monde est une tortue ge\u0301ante des Seychelles connue sous le nom de Jonathan. Elle a re\u0301cemment ce\u0301le\u0301bre\u0301 son 191e anniversaire, prolongeant ainsi son titre de plus vieil animal terrestre vivant. Une tortue record Jonathan de\u0301tient actuellement deux records du monde Guinness: celui du plus ancien animal […]<\/p>\n","protected":false},"author":82,"featured_media":57937,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[36,50,49],"class_list":["post-57938","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-africa-press","tag-africa-press-cameroun","tag-cameroun"],"yoast_head":"\nQuel \u00e2ge a la plus vieille tortue du monde ? - Cameroun<\/title>\n<meta name=\"description\" content=\"La tortue la plus a\u0302ge\u0301e du monde est une tortue ge\u0301ante des Seychelles connue sous le nom de Jonathan. 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