NAJSTAREJŠE ŽIVALI NA NAŠEM PLANETU

 NAJSTAREJŠE ŽIVALI NA NAŠEM PLANETU
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Najstarejši človek na svetu je dosegel oz. dosegla častitljivih 121 let. Tudi če človek doseže 80 ali pa 90 let, je seveda že to zelo dolgo življenje. V živalskem svetu je to drugače – 80 let za žival ne pomeni, da je zelo stara. Nekatere živali so na svetu že tako dolgo, da jim lahko rečemo živi fosili. To so najstarejše živali na našem planetu!

Rdeč morski ježek

Te živali najdemo samo v Tihem Oceanu, zadržujejo se na skalnatih obalah. Izogibajo se močno valovitim predelom. Kot pove že njihovo ime so rdeče barve, telo pa imajo prekrito z dolgimi bodicami – te jih ščitijo pred plenilci, ko se plazijo po morskem dnu. Starajo se počasi, nekateri primerki zato dosežejo vse do 200 let.

NAJSTAREJŠE ŽIVALI NA NAŠEM PLANETU
Image by Christopher Marchand from Pixabay

 

Japonski krap (Koi)

Te ribe sicer doživijo ”le” 50 let, vendar ena riba izstopa. Ime ji je bilo Hanako in velja za najstarejšo ribo na svetu. Dosegla je kar 226 let! Še vedno ni jasno, kaj je razlog za tako dolgo življenje te ribice. Mnogo ljudi je prepričanih, da je toliko let dosegla zaradi ljubezni in skrbi svojih lastnikov, ter da je lahko plavala pod Japonskimi gorami.

 

Aladabra – želva velikanka

Velikanske želve so sicer znane po tem, da dosegajo kar visoko starost. V Indiji pa je živela želva z imenom Adwaita, ki je živela 255 let. Mnogi znanstveniki menijo, da bi naj bila najstarejša kopenska žival.

 
Grenlandski morski pes

Ne samo, da so morski psi za marsikoga živali groze, tudi kar visoka leta dosegajo. Grenlandski morski psi so pri doseganju visoke starosti v prednosti – lahko so stari vse do 400 ali še več let. Spolno zreli so šele pri 150 letih.

 

Neumrljiva meduza

Prav ste prebrali. Meduza Turritopsis dohrnii je tako rekoč neumrljiva. V stiski se obnovi! To pomeni, da odrasle celice spremeni v mlajše in se tako ”stara” vzvratno. Seveda lahko, kot vsa druga živa bitja tudi one umrejo – lahko zaradi mnogih plenilcev ali pa tudi bolezni.

 

 

 
 
 
 
 
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NAJŠTEVILČNEJŠI SESALCI NA SVETU

 

 

 

Vir naslovne fotografije:Image by Alexas_Fotos from Pixabay

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Kivi

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