Ngaphandle, izidalwa zasendulo zangaphambili zazifana nezingwenya, kepha zazizikhulu: ukukhula kwazo bekungamamitha ayi-2-3, zinentamo nomsila ophakeme. Ngaso leso sikhathi, ama-dinosaurs okuqala ahamba ngemilenze emine.
Izinsalela ze-Teleocrater rhadinus zambiwa ngabembi bezinto zakudala emuva ngo-1993. Ngemuva kwalokho abaze bakhaphela ukubaluleka, ngaphandle kwalokho babembalwa babo, okungazange kwenziwe ukuthi bakwazi ukubatadisha ngokugcwele. Manje, ososayensi bakwazile ukuthola okungeziwe emthanjeni wedayinaso futhi bahlaziya ngokuphelele amathambo.
Khumbula ukuthi ebusika bonyaka ka-2017, abacwaningi abavela eJalimane bakufakazele ukuthi ama-dinosaurs eminyakeni eyizigidi ezingama-65 edlule anyamalala ebumnyameni nakubanda. Ngokusho kososayensi, ukushona kwama-dinosaurs kanye nama-75% azo zonke izilwane eziseMhlabeni kwenzeka ngenxa yokwehla okukhulu kwezinga lokushisa kanye nokushoda kwelanga. Izimo ezinjalo zavela ngoba i-asteroid yahlasela iplanethi yethu eminyakeni engaba yizigidi ezingama-65 edlule.
Amadayinaso abhukuda kanjani?
Kodwa-ke, ngo-2007, ososayensi baphinde futhi bakhumbula inkolelo-mbumbulu eyayilahliwe ngaphambili. Lapho-ke emgodini wamatshe wedolobha laseTexas iGlen Rose, kwatholakala amathrekhi amaningi amadayinaso aphile eminyakeni eyizigidi eziyi-110 edlule. Njengasesikhathini sokugcina, ukubonakala kwembali kuphela kwembonakalo yomhlaba, futhi imilenze yangemuva ayizange ithinte phansi nhlobo, noma icindezelwe kakhulu. Ososayensi banesiqiniseko sokuthi iminonjana ishiywe ngokuqondile ngama-sauropods, ngoba ububanzi bezimpawu bufika kumasentimitha angama-70.
Ukulandelwa kwama-sauropods atholakele eTexas
Njengoba kunzima kososayensi ukucabanga ukuthi ama-dinosaurs amakhulu angahamba kanjani emilenzeni emibili yangaphambili emhlabathini, baphinde baphakamisa ukuthi babhukuda ngale ndlela. Ngemuva kwakho konke, kungenzeka ukuthi, ukuwela imifula namachibi, ama-sauropods aphumula imilenze yawo ewugqinsi phansi futhi adonsela phansi, kancane kancane athole isivinini? Futhi iqiniso lokuthi la ma-dinosaurs kwakungewona ama-amphibians, empeleni, aliphazamisi ukuba khona komcabango onjalo. Yize kunjalo, izindlovu nazo zithathwa njengezidalwa ezingaphansi komhlaba, kepha lokhu akubavimbeli ukuthi bawele ngokuzithoba izihlambi ezingajulile.
Uma unentshisekelo ezindabeni zesayensi nezobuchwepheshe, bhalisela isiteshi sethu se-Telegraph. Lapho uzothola izimemezelo zezindaba zakamuva zesayithi lethu!
Ngokuvamile, ama-sauropods abhekwa njengenye athakazelisa kakhulu ocwaningweni lwama-dinosaurs. Ama-Paleontologists akholelwa ukuthi usayizi omkhulu womzimba wawo wawavikela ngokuphelele kwizinyamazane, ngoba bekuyinkinga enkulu ukulimaza isidalwa esikhulu kangaka. Kepha ngosayizi wayo omkhulu, ama-sauropod nawo alimaze iplanethi, ngoba adla imifino eningi. Cabanga nje ukuthi izilwane ezinjalo zivele ehlathini eliseduzane futhi zaqala ukudla izihlahla - ngemuva kwamasonto ambalwa, iziqu kuphela cishe ezingavela ezihlahleni.
Izindaba ezedlule
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