Raws li peb paub, txhua tus dinosaurs tsim tawm los ntawm tso qe, as ua feem ntau lwm cov sauropsids (cov tsiaj reptiles). Nws yog ib qho nyuaj heev los txiav txim seb hom ntawm dab tsi dinosaurlaid tus qe uas tau pom, vim tsuas yog qee qhov dinosaur embryos tau pom nyob rau hauv cov pob txha qe.
Ntawm no, qhov twg dinosaurs nteg lawv cov qe?
Ib txhia dinosaurs tu rau lawv qe, lwm tus yooj yim tso lawv ces muab tso tseg lawm. Thawj fossilized dinosaur qe pom (thiab qhov loj tshaj tsis tau pom) yog football-zoo li Hypselosaurus qe pom hauv Fab Kis xyoo 1869.
Tsis tas li ntawd, T Rex puas nteg qe lossis yug me nyuam? T. rex yog extinct, yog li nws ua tsis yog yug los yog hatch los ntawm qe. Tsis muaj ntxiv lawm T. rex nyob, yog li lawv tsis t yug me nyuam. Lwm yam dinosaur qe muaj tau pom, thiab niaj hnub no closestrelatives ntawm dinosaurs, crocodillians thiab noog, tag nrho loj.
Yog li ntawd, cov qe dinosaur puas tseem hnia?
Dinosaur qe coj ib lub sij hawm ntev kuj ceeb heev rau hatch. Xav tias koj yog ib tug expectant niam dinosaur." Dinosaur qe yog cov fossils ntau heev, tab sis kom pom tag nrho qe uas yeej muaj lub embryo xwb txog rau hatchtawm yog qhov tsawg tshaj plaws ntawm qhov tsis tshua muaj, "Erickson hais.
Puas T Rex nteg qe?
Txawm tias tsis muaj leej twg pom ib tug T. rex zes, qe, los yog embryo, cov kws tshawb fawb xav tias qhov loj tshaj plaws-ntawm-alldino qe - mus txog qhov loj ntawm lub khob cij Fabkis txoj hauv anest loj li cuaj feet ntawm txoj kab uas hla - zoo ib yam li dab tsi T. rex yuav tsum muaj tso.
