Ubudlelwano bokuzwana phakathi komuntu nayo yonke into esungulwe ngokuthuthuka kwezomnotho okukhona kuwo wonke umhlaba wanamuhla, Izilwane ezifuywayo ziba ilungu elisha lemindeni isinyathelo ngesinyathelo emashumini eminyaka adlule. Umndeni ngamunye unezilwane ezifuywayo ezingu-1.3 ngokwesilinganiso eYurophu nase-US. Njengelungu elikhethekile lomndeni, basilethela ukuhleka, injabulo, ukuthula nokufundisa izingane ukuba nothando ekuphileni, kukho konke ukwenza umhlaba ube ngcono. Bonke abakhi bemishini yezokwelapha banesibopho sokuhlinzeka ngosizo lwezokwelapha oluthembekile lukadokotela wezilwane ngezinga kanye nezinga elifanayo.