Ho ile ha hlaka hore na hobaneng li-dinosaurs li shoele

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Lintlha tse ncha mabapi le mokhoa oa ho ikatisa ha li-dinosaurs li hlalositse hanyane ka hanyane hore na hobaneng kamora ho oa ha meteorite li ile tsa timela kapele hakana.

Bo-rasaense ba tsoang Univesithing ea Florida State ba fumane hore li-dinosaurs li ne li qhotsa mahe. Mme bonyane ba bang ba bona ba e entse nako e telele haholo - ho fihlela likhoeli tse tšeletseng. Ho sibolloa hona ho ka etsa hore mabaka a ho timela ha liphoofolo tsena a bonahale haholoanyane. Ka mohlala, linonyana tsa kajeno ha li sebelise nako e ngata haholo ho chekeng, e leng ho etsang hore li se ke tsa ameha haholo ka liphetoho tse matla tsa tikoloho. Mohlomong, tsena ke liphetoho tse etsahetseng lilemong tse ka bang limilione tse 66 tse fetileng, ha asteroid ea li-kilometera tse leshome e oela polaneteng ea rona. Sengoloa se nehetsoeng sena se phatlalalitsoe koranteng ea Proceedings of the National Academy of Science.

Li-paleontologists li hlahlobile hore na likarolo tsa meno a meno li hola kapele hakae meno a mahe a emolisitsoeng a li-dinosaurs tsa khale. Ke 'nete hore ho fihlela joale re bua feela ka mefuta e' meli ea li-dinosaurs, e 'ngoe ea tsona e ne e le boholo ba kubu,' me e 'ngoe - pheleu. Ho latela liphuputso tsena, mahe a emolisitsoeng a ile a qeta likhoeli tse tharo ho isa ho tse tšeletseng lehe. Mofuta ona oa nts'etsopele o khetholla li-dinosaurs ho likhahla le likoena ka bobeli, le ho linonyana tse qhotsang mahe a tsona nako e sa feteng matsatsi a 85.

Ho bohlokoa haholo hore li-dinosaurs li se ke tsa tlohela mahe a tsona a sa lebelloa, joalo ka ha ba ne ba nahana, empa ba a qhotsa. Haeba ba sa etse sena, ba its'etleha feela ka lithemparetjha tse ntle, monyetla oa hore malinyane a bona a tsoaloe o ne o tla ba monyane haholo, hobane mocheso o tsitsitseng o bolokiloe ka seoelo nako e telele joalo. Ntle le moo, ka nako e telele joalo, menyetla ea hore liphoofolo tse jang liphoofolo li ka ja mahe e eketsehile haholo.

Ho fapana le li-dinosaurs, mekholutsoane le likoena ha li qhotsoe ke mahe, 'me lesea le sa tsoa emoloa le hlaha ho tsona ka lebaka la mocheso oa tikoloho. Ka hona, nts'etsopele e lieha - ho fihlela likhoeli tse 'maloa. Empa li-dinosaurs, haeba e se kaofela, bonyane tse ling li ne li na le mali a futhumetseng mme li bile li na le masiba. Ke hobane’ng ha mahe a tsona a ile a hōla butle hakaalo? Mohlomong, lebaka la sena e ne e le boholo ba tsona - ho fihlela ho li-kilogram tse 'maloa, tse ka amang sekhahla sa kholo.

Ho sibolloa hona ho etsa likhopolo-taba tse fetileng tsa hore li-dinosaurs li ne li pata mahe a tsona mobung haholo. Bakeng sa likhoeli tse tharo ho isa ho tse tšeletseng, clutch ea mahe a sa lebeloang ke batsoali ba bona e ne e na le menyetla e fokolang ea ho phela, 'me boemo ba leholimo bo tsitsitseng bo ne bo ke ke ba bolokoa sebakeng sohle sa liphoofolo tsena.

Empa ntho ea bohlokoa ka ho fetisisa ke hore, esita le ha ho e-na le nako ea poloko, nako e telele ea ho kopanya e ile ea etsa hore baahi ba dinosaur ba be tlokotsing haholo haeba tikoloho e ne e ka fetoha haholo. Sena se etsahetse lilemo tse ka bang limilione tse 66 tse fetileng, ha mariha a tsoang asteroid le tlala e tšabehang li theohela Lefatšeng. Maemong a joalo, li-dinosaurs li ne li ke ke tsa hlola li qhotsa mahe ka likhoeli tse ngata, hobane ho ne ho le thata haholo ho fumana lijo haufi le moo. Ho ka etsahala hore ebe ke lona lebaka le entseng hore ba nyamele ka bongata.

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