Dinosaurs ndeimwe yemhando dzinonakidza kwazvo munhoroondo yekushanduka kwezvipenyu paPasi. Isu tese takajairana nemadinosaur. Madhinaina aiita sei, madhinaina aidyei, madhinaina aivhima sei, inzvimbo yakaita sei yaigara madhinosaur, uye kunyange nei madhainari akazotsakatika… Kunyange vanhuwo zvavo vanogona kutsanangura mibvunzo yakafanana pamusoro pemadhinosaur nenzira yakajeka uye ine musoro. Isu tatoziva zvakawanda nezvemadinosaur, asi pane mubvunzo mumwe chete uyo vanhu vazhinji vangasanzwisisa kana kufunga nezvawo: Madhinaina akararama kwenguva yakareba sei?
Paleontologists vakambodavira kuti chikonzero nei madhinosaurs akakura kudaro chaiva chokuti akararama kweavhareji yemakore 100 kusvika ku300. Uyezve, semakarwe, madhinosaur aive asina-mugumi ekukura mhuka, achikura zvishoma nezvishoma uye achienderera muhupenyu hwavo hwose. Asi zvino tinoziva kuti izvi hazvisizvo. Mazhinji madhinosaurs akakura nekukurumidza uye akafa achiri mudiki.
· Nzira yekutonga sei hupenyu hwemadinosaur?
Kazhinji kutaura, dinosaurs makuru akararama kwenguva refu. Hupenyu hwemadinosaur hwakatemwa nekudzidza zvisaririra. Nekucheka mafossilized mapfupa emadinosaur uye nekuverenga mitsetse yekukura, vesainzi vanokwanisa kutonga zera redhinosaur vozofanotaura hupenyu hwedhinaso. Isu tose tinoziva kuti zera remuti rinogona kutariswa nekutarisa mhete dzekukura kwayo. Kufanana nemiti, mapfupa edinosaur anoumbawo "mhete dzekukura" gore negore. Gore negore muti unokura, hunde yawo inokura mudenderedzwa, iyo inonzi mhete yegore. Izvi zvakafanana kune mapfupa edinosaur. Masayendisiti anogona kuona zera remadinosaur nekudzidza "maringi epagore" ezvisaririra zvemapfupa edinosaur.
Kuburikidza nemutowo uyu, nyanzvi dzenhoroondo dzekare dzinofungidzira kuti upenyu hwedinosaur duku Velociraptor hwaingova makore gumi chete; iyo yeTriceratops yaive makore angangoita makumi maviri; uye kuti mukuru wedhinasa, Tyrannosaurus rex, akatora makore 20 kuti asvike pakuva munhu mukuru uye aiwanzofa ari pakati pemakore 27 ne33. Carcharodontosaurus inorarama makore ari pakati pe39 ne53; madhinaini makuru ane mitsipa mirefu, akadai seBrontosaurus neDiplodocus, anotora makore 30 kusvika ku40 kuti asvike pakukura, saka anogona kurarama kusvika makore 70 kusvika ku100.
Upenyu hwemadinosaur hunoratidzika kuva hwakasiyana zvikuru nefungidziro yedu. Madhinainari anoshamisa kudaro angave sei nemararamiro akajairika kudaro? Dzimwe shamwari dzingabvunza, ndezvipi zvinhu zvinokanganisa hupenyu hwemadinosaurs? Chii chakaita kuti madinosaur ararame makore mashomanana chete?
Sei madhinosaurs asina kurarama kwenguva refu?
Chinhu chekutanga chinokanganisa hupenyu hwemadinosaurs ndeye metabolism. Kazhinji, endotherms ane akakwira metabolisms anorarama hupenyu hupfupi pane ectotherms ane yakaderera metabolisms. Uchiona izvi, shamwari dzinogona kutaura kuti dinosaurs zvipembenene, uye zvinokambaira zvinofanira kuva mhuka dzinotonhora dzine hupenyu hurefu. Muchokwadi, masayendisiti akawana kuti mazhinji madinosaurs imhuka dzine ropa rinodziya, saka kukwirira kwemasabolism kwakaderedza hupenyu hwemadinosaur.
Chechipiri, nharaunda zvakare yakave nemhedzisiro inouraya pahupenyu hwemadinosaurs. Munguva yairarama madinosaur, kunyange zvazvo mhoteredzo yakanga yakakodzera kuti madinosaur ararame, yakanga ichiri yakaoma kana ichienzaniswa nepasi nhasi: mweya weokisijeni uri mumhepo yakapoteredza pasi, sulfur oxide iri mumhepo yakapoteredza pasi nemvura, uye kuwanda kwemwaranzi yaibva muchadenga zvose zvakanga zvakasiyana nemazuva ano. Mhoteredzo yakaoma kudaro, pamwe chete nokuvhima kwoutsinye uye makwikwi pakati pemadinosaur, zvakakonzera kuti madinosaur akawanda afe mukati menguva pfupi.
Zvese mune zvese, hupenyu hwema dinosaurs hauna kureba sekufunga kunoita munhu wese. Upenyu hwakadaro hwakabvumira sei madinosaur kuva madzishe eNguva yeMesozoic, achitonga pasi kweanenge mamiriyoni 140 emakore? Izvi zvinoda imwe tsvakurudzo nepaleontologists.
Kawah Dinosaur Yepamutemo Webhusaiti:www.kawadinosaur.com
Nguva yekutumira: Nov-23-2023