Ososayensi abahlaziya izinsalela zomdlwane we-Ice Age ogcinwe kahle bathola okutholwe okungalindelekile ngaphakathi esiswini sawo: okuncane okungenzeka kube omunye wobhejane wokugcina onoboya.
Ngo-2011, abacwaningi baseRussia bathola isidumbu se-canine esilondoloziwe, esinoboya - okungenzeka kube inja noma impisi - endaweni yaseTumat, eSiberia. Kutholwe isicubu esinoboya esiswini salo mdlwane oneminyaka engu-14,000 XNUMX ubudala. Ngenxa yoboya bayo obuhle obuphuzi, ochwepheshe baqale baphetha ngokuthi lolu cezu lwalungelobhubesi eliwumhume.
Nokho, ukuhlola okwenziwa ososayensi eStockholm’s Natural History Museum kwembula indaba ehlukile. "Ngesikhathi bethola i-DNA, akuzange kubonakale njengengonyama yasemhumeni," U-Love Dalen, uprofesa wofuzo lokuziphendukela kwemvelo eStockholm University kanye neSwedish Museum of Natural History, utshele i-CNN.
"Sinesizinda solwazi esiyisethenjwa kanye ne-mitochondrial DNA evela kuzo zonke izilwane ezincelisayo, ngakho sihlole idatha yokulandelana ngokumelene nalokho kanye nemiphumela ebuyile - bekucishe kufane kahle kobhejane onoboya," Kusho uDalen.
“Akuzwakali neze. Angazi nakancane i-Ice Age carnivore lapho ethole khona izicucu zezicubu ngaphakathi,” uthe. Ochwepheshe balinganisela ukuthi isikhumba sikabhejane sasineminyaka engaba ngu-14,400 ubudala ngemva kokuba i-radiocarbon ijola nesampula.
“Lo mdlwane, siyazi kakade, uneminyaka engu-14,000 edlule. Siyazi futhi ukuthi ubhejane onoboya uyashabalala eminyakeni engu-14,000 XNUMX edlule. Ngakho-ke, kungenzeka, lo mdlwane udle ubhejane wokugcina onoboya obusele,” uthe.
Ososayensi bayaxakeka ukuthi kwenzeka kanjani ukuthi umdlwane ugcine uphethe uphondo lukabhejane esiswini. Ngokuka-Edana Lord, i-Ph.D. umfundi esikhungweni sePalaeogenetics obhale ngokuhlanganyela iphepha ngokushabalala kwe ubhejane onoboya, izilwane zaziyolingana nobhejane omhlophe wanamuhla, okwenza kungenzeki ukuthi umdlwane ubulale isilo.
Abacwaningi bahlabeke umxhwele ikakhulukazi ngokuthi umdlwane washeshe washabalala ngemva kokudla ubhejane. “Lo mdlwane kumele ukuthi ufe usanda kudla ubhejane ngoba awugayeki kakhulu,” UDalen utshele i-CNN.
“Asazi noma bekuyimpisi yini kodwa uma bekuyingane yempisi mhlawumbe ihlangane nengane kabhejane isifile, noma impisi (ekhulile) idle ubhejane,” waqagela. “Mhlawumbe ngesikhathi bewudla, unina kabhejane waziphindiselela.”
