Mu buryo bwumvikana,Pterosauriani bwo bwoko bwa mbere mu mateka bwashoboye kuguruka mu kirere nta nkomyi. Kandi nyuma yuko inyoni zigaragara, bisa nkaho bihuje n'ubwenge ko Pterosauria ari yo yakomotseho inyoni. Ariko, Pterosauria ntiyari yo yakomotseho inyoni zo muri iki gihe!
Mbere na mbere, reka dusobanukirwe neza ko ikintu cy'ibanze kiranga inyoni ari ukugira amababa afite amababa, atari ukugira ngo zishobore kuguruka! Pterosaur, izwi kandi nka Pterosauria, ni inyoni y’inyamaswa yazimye yabayeho kuva mu mpera ya Triassic kugeza ku mpera ya Cretaceous. Nubwo ifite imiterere yo kuguruka isa cyane n’inyoni, ntabwo ifite amababa. Byongeye kandi, Pterosauria n’inyoni byari mu buryo bubiri butandukanye mu nzira y’ubwihindurize. Uko byagenda kose, Pterosauria ntiyashoboraga guhinduka inyoni, ndetse n’abakurambere b’inyoni.
None se inyoni zakomotse he? Nta gisubizo gihamye kiri mu muryango w’abahanga muri siyansi. Tuzi gusa ko Archeopteryx ari yo nyoni ya mbere tuzi, kandi yagaragaye mu mpera z’igihe cya Jurassic, ikabaho mu gihe kimwe n’inyoni za dinosaur, bityo birakwiye kuvuga ko Archeopteryx ari we mukurambere w’inyoni zo muri iki gihe.
Biragoye gukora ibisigazwa by'inyoni, ibyo bigatuma kwiga inyoni za kera bigorana cyane. Abahanga mu bya siyansi bashobora gushushanya gusa ishusho y'inyoni ya kera bashingiye kuri ibyo bimenyetso bigufi, ariko ikirere cya kera nyacyo gishobora kuba gitandukanye rwose n'ibyo twibwira, utekereza iki?
Kawah Dinosaur Urubuga rwemewe:www.kawahdinosaur.com
Igihe cyo kohereza ubutumwa: 29 Nzeri 2021