Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Muchinyorwa chaMarch 2005 cheScience, Mary Higby Schweitzer weNorth Carolina State University nevamwe vake vakazivisa kuwanwa kwetsandanyama dzakapfava dzakabva muura hwomutsipa wegumbo rakabva muTyrannosaurus rex. Pfupa racho rakanga rakatyorwa nemaune, kunyange zvazvo risingadi, kuti riendeswe nomugungwa uye ipapo risina kuchengetwa nenzira yakajairika, zvikurukuru nemhaka yokuti Schweitzer akanga achitarisira kuriedza nokuda kweganda rakapfava. Yakagadzwa seMuziyamu yeRockies specimen 1125, kana kuti MOR 1125, iyi dinosaur yakanga yambocherwa muHell Creek Formation. Midziyo yeropa inochinja-chinja uye inochinja-chinja uye nhengo dzomuviri dzomuviri dzakasimba asi dzakasimba dzakaonekwa. Mukuwedzera, zvimiro zviduku zvakafanana nemasero eropa zvakawanwa mukati medumbu nemidziyo. Maumbirwo acho akafanana nemasero eropa uye mitsipa yeshuramurove. Kana muitiro usingazivikanwi, wakasiana nokuva zvisaririra kwomuzvarirwo, wakachengeta mashoko acho, kana kuti mashoko acho ndeapakuvamba, vanzveri havazivi, uye vanongwarira kusaita kutaura kupi nokupi pamusoro pokuchengetwa. Kana ikawanwa kuva zvinhu zvepakutanga, mapuroteni ose akapona angashandiswa senzira yokufungidzira zvisina kunanga zvimwe zveDNA yemadinosaurs anobatanidzwa, nemhaka yokuti puroteni imwe neimwe inowanzogadzirwa nejeni rakati. Kushaikwa kwezvakawanwa kare kungava mugumisiro wokuti vanhu vakafunga kuti tishu yakachengetedzwa yakanga isingabviri, naizvozvo vasina kutsvaka. Chifo chokutanga, mamwe ma tyrannosaurs maviri nehadrosaur zvakawanwawo kuva nezvimiro zvakafanana netishu. Kunzvera dzimwe nhengo dzomuviri dzakabatanidzwa kwakaratidzira kuti shiri ndidzo hama dzepedyo zvikuru dze tyrannosaurs kupfuura dzimwe mhuka dzazvino uno.  Mubvunzo: Chii chakaputsika kuti chiendeswe?
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