Tyrannosaurus rex, izwi kandi ku izina rya T. rex cyangwa “umwami w'igisimba w'igitugu,” ifatwa nk'imwe mu biremwa bikaze mu bwami bwa dinosaur. T. rex yari mu muryango wa tyrannosauridae uri munsi yumupaka wa theropod, T. rex yari dinosaur nini yinyamanswa yabayeho mugihe cya Late Cretaceous, hashize imyaka miriyoni 68.
IzinaT. rexiva mubunini bwayo nubushobozi bukomeye bwo guhiga. Nk’uko ubushakashatsi bwa siyansi bubyerekana, T. rex ishobora gukura kugera kuri metero 12-13 z'uburebure, guhagarara nka metero 5.5, no gupima toni zirenga 7. Ryari rifite imitsi ikomeye y'urwasaya n'amenyo atyaye ashoboye kuruma mu rubavu no gutanyagura inyama z'izindi dinosaur, bituma iba inyamaswa ikomeye.
Imiterere yumubiri ya T. rex nayo yagize ikiremwa kidasanzwe. Abashakashatsi bavuga ko ishobora kwiruka ku muvuduko wa kilometero 60 mu isaha, ikubye inshuro nyinshi kurusha abakinnyi. Ibi byatumye T. rex yirukana byoroshye umuhigo wayo no kubitsinda.
Nubwo ifite imbaraga zidasanzwe, ariko, kubaho kwa T. rex kwabaye igihe gito. Yabayeho mugihe cyanyuma cya Cretaceous, kandi hamwe nizindi dinosaurs nyinshi, yazimye mumyaka miriyoni 66 ishize mugihe cyibikorwa byo kuzimira. Mu gihe icyateye iki kibazo cyakomeje kwibazwaho byinshi, ibimenyetso bya siyansi byerekana ko bishobora kuba byaratewe n’ibiza byibasiwe n’ibiza nko kuzamuka kw’inyanja, imihindagurikire y’ikirere, ndetse n’ibirunga bikabije.
Usibye gufatwa nk'imwe mu biremwa biteye ubwoba mu bwami bwa dinosaur, T. rex izwi cyane kubera imiterere yihariye y'umubiri n'amateka y'ubwihindurize. Ubushakashatsi bwa siyansi bwerekanye ko T. rex yari ifite imiterere nini ifite imbaraga nimbaraga zikomeye, bigatuma ishobora gutsinda umuhigo wayo mu mutwe nta gikomere. Byongeye kandi, amenyo yacyo yarahujwe cyane, bituma ashobora gucamo byoroshye inyama zitandukanye.
Noneho, T. rex yari kimwe mubiremwa bikaze mubwami bwa dinosaur, bifite ubushobozi bukomeye bwo guhiga no siporo. Nubwo hashize imyaka miriyoni yazimye, akamaro kayo ningaruka kuri siyansi numuco bigezweho biracyafite akamaro, bitanga ubushishozi mubikorwa byubwihindurize hamwe nibidukikije byubuzima bwa kera.
Kawah Dinosaur Urubuga rwemewe:www.kawahdinosaur.com
Igihe cyo kohereza: Ugushyingo-06-2023