Isakhiwo esingaqondakali esineminyaka engu-10,000 ubudala savubukulwa ngaphansi koLwandle iBaltic

Ekujuleni koLwandle iBaltic kunendawo yokuzingela yasendulo! Abatshuzi bathole isakhiwo esikhulu, esingaphezu kweminyaka eyi-10,000 ubudala, siphumule ekujuleni kwamamitha angama-21 olwandle lwaseMecklenburg Bight oLwandle iBaltic. Lokhu okutholakele okumangalisayo kungenye yamathuluzi okuzingela akudala awaziwayo akhiwa abantu eYurophu.

Kutholwe into emangalisayo ekujuleni koLwandle iBaltic! Ososayensi bazithele phezu kwesakhiwo esikhulu esingaphansi kwamanzi esakhiwa eminyakeni engaphezu kuka-10,000 edlule. Le megastructure, okukholakala ukuthi ingelinye lamathuluzi okuzingela amadala enziwe abantu eYurophu, yakhiwa abazingeli be-Stone Age.

Isakhiwo esiyimfihlakalo esineminyaka engu-10,000 ubudala savubukulwa ngaphansi koLwandle iBaltic 1
Imodeli ye-3D yesigaba esifushane sodonga lwamatshe njengoba luvela njengamanje ngaphansi koLwandle i-Baltic. Ikhredithi Yesithombe: Philipp Hoy, University of Rostock / imodeli: Jens Auer, LAKD MV

Cabanga ngomugqa owelula cishe ikhilomitha ukusuka olwandle – leso yisilinganiso salokhu okutholakele okumangalisayo. Iqanjwe abacwaningi ngokuthi “i-Blinkerwall”, yenziwe cishe ngamatshe angu-1,500 namatshe ahlelwe kahle ngokulandelana. Lolu donga lwangaphansi kwamanzi alwakhelwe ukuhlobisa; kukholakala ukuthi ibambe iqhaza elibalulekile endleleni yokuphila yabazingeli.

Isakhiwo esiyimfihlakalo esineminyaka engu-10,000 ubudala savubukulwa ngaphansi koLwandle iBaltic 2
I-Undersea morphology yesifunda, eqoqwe kusetshenziswa imoto ekude. Esithombeni sesi-3, imicibisholo emhlophe ikhomba ku-Blinkerwall. Ikhredithi Yesithombe: Geersen et al., PNAS (2024)

Kanjani ngempela? Abacwaningi bacabanga ukuthi bekuyingxenye yesu eliwubuciko lokuzingela. Ama-reindeer, okuwumthombo wokudla okuyisisekelo kulaba bantu bokuqala, cishe ayeluswe ngasodongeni. Kungenzeka ukuthi umugqa wamatshe wawuyisithiyo noma ifaneli, okwenza kube lula kubazingeli ukuba bathathe inyamazane yabo.

Isakhiwo esiyimfihlakalo esineminyaka engu-10,000 ubudala savubukulwa ngaphansi koLwandle iBaltic 3
Abacwaningi baphinde bakha kabusha ukuthi kungenzeka ukuthi udonga lwamatshe lwavela kanjani ngesikhathi se-Stone Age. Ikhredithi Yesithombe: Michal Grabowski / Kiel University

Lokhu kutholwa akukhona nje ngodonga olupholile olungaphansi kwamanzi. Ikhanyisa ngobuhlakani kanye nobuchule bemiphakathi ye-Stone Age. I-Blinkerwall ikhuluma kakhulu ngemikhuba yabo yokuzingela eyinkimbinkimbi, ukuziphatha kwendawo, kanye nekhono labo lokuhlela nokusebenza ndawonye.

Ukuthola izimfihlo ze-Blinkerwall kusanda kuqala. Uphenyo olwengeziwe luthembisa ukunikeza amazwibela athakazelisayo ezimpilweni zalaba bazizingeli basendulo kanye nendlela ababezivumelanisa ngayo nendawo yabo.