Kutholakale isibungu esingajwayelekile olwandle iPacific Ocean. Ukuhluka kwalesi sidalwa kuxhomeke ekutheni phambi kwekhanda, akunamzimba nhlobo.
Lokhu okutholakele kwaziwa ngokushicilelwa okunegunya njenge-Current Biology. Ngokusho kwabacwaningi bezilwandle abamele iStanford University, ngokubukeka, lesi sibungu sibukeka njengesibungu esidala, esinqume ukuqala ukufaka ikhanda laso, bese siqala ukukhulisa umzimba ngokuhamba kwesikhathi. Ngenxa yalokhu, isibungu sesivele sesibhukuda njengebhola olwandle, siqoqa iplankton. Cishe, ukubambezeleka okunjalo entuthukweni kubaluleke kakhulu kwisibungu, ngoba ngakho-ke singabhukuda kahle.
Lokhu kutholakala kwenzeka ngengozi - ngenkathi kukhuliswa izibungu zezilwane zasolwandle ezahlukahlukene ukuze zihlaziye ama-metamorphoses azo, kusukela esigabeni sesibungu kuze kufike kumuntu omdala ohluke ngokuphelele.
NgokukaPaul Gonzalez (eStanford University, eU.SA), ososayensi kade bacabanga ukuthi izilwane zasolwandle ezikhathini eziningi zikhula ngale ndlela. Ngakho-ke, ososayensi bezinto eziphilayo sekuyisikhathi eside bekhathazekile ngokuthi kungani futhi balithola kanjani leli khono. Futhi isithiyo esikhulu esasivimba ukuthi sithole izimpendulo ukuthi kwakunzima ngendlela exakile futhi kudla isikhathi ukukhulisa izibungu zalezo zilwane futhi sibheke “izihlobo” zazo, ezazizobukeka zifana nasempilweni yabantu abadala.
Futhi kwakukufuna isidalwa esinjalo lapho izazi zasolwandle zahlangana nesibungu esingajwayelekile. KwakunguSchizocardium calcienticum ehlala ePacific Ocean eduze naseCalifornia. Njengabantu abadala, bahlala ezihlabathini ezingezansi, badla izinsalela zezilwane eziwela phansi olwandle. Izibungu zabo, ezitholwe ososayensi, ziyefana kakhulu nenhloko yomuntu omdala ngaphandle komzimba. Ngenxa yomzimba onjalo, bayakwazi "ukuntanta" emanzini, bedla iplankton.
Isizathu salokhu ukuthi izakhi zofuzo eziholela ekukhuleni komzimba esigabeni sesibungu zivaliwe nje. Futhi lapho isibungu sidla size sifike ezingeni elithile futhi sikhule sibe ngosayizi othize, lesi sakhi sofuzo siyajika bese umzimba wonke ukhula kuso. Ukuthi lokhu kufakwa kwenzeka kanjani empeleni akwaziwa ososayensi, kepha banethemba lokuthola impendulo ngokubuka ukukhula kwalesi silwane kanye nokwakhiwa kwezikelemu, ezisondelene kakhulu neSchizocardium cal sanicum, kodwa ezikhula ngendlela ejwayelekile.
