Ngokunengqondo,I-Pterosauriakwakuyizinhlobo zokuqala emlandweni ezazikwazi ukundiza ngokukhululeka esibhakabhakeni. Futhi ngemva kokuvela kwezinyoni, kubonakala kunengqondo ukuthi iPterosauria yayingokhokho bezinyoni. Kodwa-ke, iPterosauria yayingebona okhokho bezinyoni zanamuhla!
Okokuqala, masicace ukuthi isici esiyisisekelo sezinyoni ukuba namaphiko anezimpaphe, hhayi ukukwazi ukundiza! I-Pterosaur, eyaziwa nangokuthi i-Pterosauria, iyisilwane esihuquzelayo esiphelile esaphila kusukela ku-Late Triassic kuze kube sekupheleni kwe-Cretaceous. Nakuba inezici zokundiza ezifana kakhulu nezinyoni, azinazo izimpaphe. Ngaphezu kwalokho, i-Pterosauria nezinyoni zaziyingxenye yezinhlelo ezimbili ezahlukene enkambisweni yokuziphendukela kwemvelo. Kungakhathaliseki ukuthi zathuthuka kanjani, i-Pterosauria yayingenakukwazi ukuphenduka ibe yizinyoni, ingasaphathwa eyookhokho bezinyoni.
Ngakho-ke izinyoni zavelaphi? Okwamanje ayikho impendulo eqondile emphakathini wesayensi. Sazi kuphela ukuthi i-Archeopteryx inyoni yokuqala esiyaziyo, futhi yavela enkathini yokugcina ye-Jurassic, iphila enkathini efanayo nama-dinosaur, ngakho-ke kufanelekile ukusho ukuthi i-Archeopteryx ingukhokho wezinyoni zanamuhla.
Kunzima ukwakha izinsalela zezinyoni, okwenza ukufunda ngezinyoni zasendulo kube nzima nakakhulu. Ososayensi bangakwazi ukudweba uhlaka lwenyoni yasendulo ngokusekelwe kulezo zinkomba eziqhekekile, kodwa isibhakabhaka sangempela sasendulo singase sihluke ngokuphelele emcabangweni wethu, ucabangani?
Iwebhusayithi esemthethweni ye-Kawah Dinosaur:www.kawahdinosaur.com
Isikhathi sokuthunyelwe: Septhemba-29-2021