Ma Dinosaurs ndi amodzi mwa mitundu yosangalatsa kwambiri m'mbiri ya kusintha kwa zamoyo padziko lapansi. Tonsefe timadziwa bwino za ma dinosaur. Kodi ma dinosaur ankaoneka bwanji, ma dinosaur ankadya chiyani, ma dinosaur ankasaka bwanji, malo otani omwe ma dinosaur ankakhalamo, komanso chifukwa chake ma dinosaur anatha ... Ngakhale anthu wamba amatha kufotokoza mafunso ofanana okhudza ma dinosaur m'njira yomveka bwino komanso yomveka bwino. Tikudziwa kale zambiri zokhudza ma dinosaur, koma pali funso limodzi lomwe anthu ambiri sangamvetse kapena kuganiza za ilo: Kodi ma dinosaur anakhala nthawi yayitali bwanji?
Akatswiri a zinthu zakale ankakhulupirira kuti chifukwa chomwe ma dinosaur anakulirakulira kwambiri chinali chakuti anakhala ndi moyo kwa zaka pafupifupi 100 mpaka 300. Komanso, monga ng'ona, ma dinosaur anali nyama zomwe zimakula pang'onopang'ono komanso mosalekeza m'miyoyo yawo yonse. Koma tsopano tikudziwa kuti sizili choncho. Ma dinosaur ambiri anakula mofulumira kwambiri ndipo anafa ali aang'ono.
· Kodi tingaweruze bwanji nthawi ya moyo wa ma dinosaur?
Kawirikawiri, ma dinosaur akuluakulu amakhala ndi moyo wautali. Moyo wa ma dinosaur unkadziwika pofufuza za mafupa akale. Mwa kudula mafupa a ma dinosaur omwe adasanduka mafupa ndikuwerenga mizere yokulira, asayansi amatha kuweruza zaka za dinosaur kenako n’kuneneratu za moyo wa dinosaur. Tonse tikudziwa kuti zaka za mtengo zimatha kudziwika poyang’ana mphete zake zokulira. Mofanana ndi mitengo, mafupa a ma dinosaur amapanganso “mphete zokulira” chaka chilichonse. Chaka chilichonse mtengo umakula, thunthu lake limakula mozungulira, lomwe limatchedwa mphete ya pachaka. Izi ndi zomwe zimachitikanso ndi mafupa a ma dinosaur. Asayansi amatha kudziwa zaka za ma dinosaur pophunzira “mphete za pachaka” za mafupa a ma dinosaur.
Kudzera mu njira imeneyi, akatswiri a mbiri yakale amayerekezera kuti moyo wa dinosaur yaying'ono ya Velociraptor unali wa zaka 10 zokha; wa Triceratops unali wa zaka 20; ndipo mtsogoleri wa dinosaur, Tyrannosaurus rex, unatenga zaka 20 kuti ukhale wamkulu ndipo nthawi zambiri umamwalira uli ndi zaka zapakati pa 27 ndi 33. Carcharodontosaurus amakhala ndi moyo wa zaka pakati pa 39 ndi 53; ma dinosaur akuluakulu okhala ndi khosi lalitali, monga Brontosaurus ndi Diplodocus, amatenga zaka 30 mpaka 40 kuti afike pa msinkhu, kotero amatha kukhala ndi moyo wa zaka pafupifupi 70 mpaka 100.
Moyo wa ma dinosaur ukuoneka kuti ndi wosiyana kwambiri ndi malingaliro athu. Kodi ma dinosaur odabwitsa otere angakhale bwanji ndi moyo wamba chonchi? Anzathu ena angafunse kuti, ndi zinthu ziti zomwe zimakhudza moyo wa ma dinosaur? N’chiyani chinapangitsa kuti ma dinosaur akhale ndi moyo zaka makumi angapo zokha?
· N’chifukwa chiyani ma dinosaur sanakhale ndi moyo nthawi yayitali?
Chinthu choyamba chomwe chimakhudza moyo wa ma dinosaur ndi kagayidwe kachakudya. Kawirikawiri, ma endotherm okhala ndi kagayidwe kachakudya kapamwamba amakhala ndi moyo waufupi kuposa ma ectotherm okhala ndi kagayidwe kotsika. Poona izi, abwenzi anganene kuti ma dinosaur ndi zokwawa, ndipo zokwawa ziyenera kukhala nyama zokhala ndi magazi ozizira zokhala ndi moyo wautali. Ndipotu, asayansi apeza kuti ma dinosaur ambiri ndi nyama zokhala ndi magazi ofunda, kotero kuchuluka kwa kagayidwe kachakudya kunachepetsa moyo wa ma dinosaur.
Kachiwiri, chilengedwe chinalinso ndi zotsatira zoopsa pa moyo wa ma dinosaur. Mu nthawi imene ma dinosaur analipo, ngakhale kuti chilengedwe chinali choyenera kuti ma dinosaur akhalemo, chinali chovutabe poyerekeza ndi dziko lapansi masiku ano: mpweya womwe uli mumlengalenga, sulfure oxide yomwe ili mumlengalenga ndi m'madzi, komanso kuchuluka kwa kuwala kwa dzuwa kuchokera ku chilengedwe chonse kunali kosiyana ndi masiku ano. Malo ovuta otere, pamodzi ndi kusaka ndi mpikisano wankhanza pakati pa ma dinosaur, zinapangitsa kuti ma dinosaur ambiri afe mkati mwa nthawi yochepa.
Mwachidule, nthawi ya moyo wa ma dinosaur si yayitali monga momwe aliyense amaganizira. Kodi moyo wamba woterewu unalola bwanji ma dinosaur kukhala olamulira a nthawi ya Mesozoic, akulamulira dziko lapansi kwa zaka pafupifupi 140 miliyoni? Izi zimafuna kafukufuku wowonjezereka wochokera kwa akatswiri a paleontologist.
Webusaiti Yovomerezeka ya Kawah Dinosaur:www.kawahdinosaur.com
Nthawi yotumizira: Novembala-23-2023