Bekungeke kube okokuqala ukuthi sikhulume ngezinkulungwane noma ngezigidi de peces Bafele echibini elithile noma emfuleni kule planethi. Kulezi zinhlobo zamacala, ithimba labaphenyi livamise ukuthunyelwa ukuze licacise ngokwenzekile. Ngeshwa, umphumela walokhu kufa cishe njalo kungenxa yenhlabathi engcolile. amanzi ezazikhona noma ezinsaleleni ezinobuthi ezazikhona. Izenzo ezenziwa ngumuntu uqobo.
Abantu abaningi futhi bayazibuza ukuthi kungani amanzi angcolile ebulala izinhlanzi. Le nkinga inesixazululo esilula. Futhi, ngoba kungekho ukuhlanza okwanele, amanzi awakwazi ukugcina ifayili le- umoya-mpilo ngokusinda kwezilwane, okuzibangela ukuthi zife zikhungathekile. Okuthile futhi okwenzekayo kithina uma singatholi umoya owanele.
Izinhlanzi zinama-gill, izitho ezikhipha umoya-mpilo emanzini (sizikhipha emoyeni). Uma amanzi enezakhi ezinobuthi noma ukungcola, kuyacaca ukuthi ngeke ibe khona inani elidingekayo lomoya-mpilo. Endaweni yabo uzothola zonke izinhlobo zamakhemikhali angahlangene nakancane nomunye nomunye. Ekugcineni, izinhlanzi ziyafa ngoba zingakutholi ezikudingayo ukuze ziphile. Imvamisa, i- isixazululo okutholakele ukuhlanza amanzi.
Kufanele ubhekisise le nkinga, ngoba kungahle kube nokushoda komoya-mpilo ku ama-aquariums. Ngalesi sizathu, sincoma ukuhlanzwa amanzi masonto onke. Ngale ndlela kuzoba kuhlanzekile futhi kube ne-oxygen eyenele ukuze izilwane ziphile. Ungalokothi ukhohlwe, impilo yezilwane zakho isengozini.