Nyob rau hauv lub ntiaj teb noog, ostriches yog cov tswv yim tsuas hnyav ntawm cov plaub hau ntev thiab tsis tsim ob-meter tis. Lawv tsis tau mus saum ntuj thiab khiav tawm ntawm cov neeg txhawj ntshai. Dab tsi yog qhov siab tshaj plaws tau tsim cov noog uas tsis txawj ya, kawm ntxiv los ntawm tsab xov xwm.
Qhov kev txiav txim siab pom zoo li cas
Vim nws muaj zog thiab tuab ceg, ostriches muaj peev xwm kov yeej zoo nyob rau hauv ib lub sij hawm luv luv. Lawv nqua ntshauv yog cov nqaij ntshiv uas tau tsim, muab qhov ceev ceev, thiab ib tug ntiv tes rau ntawm txhua lub paw. 
Yog tias koj saib cov noog ntawm ko taw kom meej, koj tuaj yeem pom tias tsis muaj tus ntsia hlau rau ntawm txoj kev tsis txaus siab luv luv. Thiab ntawm ob tug ntiv tes thib ob yog ib qho tseem ceeb heev.
Koj puas paub? Ob txhais ceg ntawm cov yoj oob khab yog tua riam phom. Kev sib piv: ib tus nees 's hoof kick yog kwv yees li ntawm 20 kg ib square centimeter, thiab tus qaib ntxhw lub kick yog 30 kg! Xws li ib tug quab yuam tau yooj yim bends hlau bar ntawm 1.5 centimeter tuab thiab smashes tib neeg cov pob txha..
Rau lub qaib, nws tseem ceeb heev vim tias:
- tswj cov ceev ntawm cov feathered thaum khiav thiab taug kev;
- yog kev them nyiaj yug thaum tus noog tiv thaiv nws tus kheej thaum tiv thaiv nws tus kheej;
- pab txhawb kev tawm ntawm cov kauj ruam thiab kev ua neej nyob ntawm qhov kev khiav tsis muaj kev khiav haujlwm.
Niaj hnub nimno ornithologists, taxonomists thiab evolutionists ntseeg tias tag nrho cov tsiaj txhu zoo li cov tsiaj muaj ib tug txwv zeej txwv koob uas muaj nrog dinosaurs thaum Mesozoic lub sijhawm. Nws yog tam sim no cov noog ploj ntawm qhov kev txiav txim ntawm lithorates, uas nyob ntawm 55 lab lub xyoos dhau los.
Nrhiav kom paub seb nws puas muaj peev xim yug ostriches tom tsev. Thiab kuj paub tias qhov twg qaib thiab cov qaib ntxhw nyob thiab seb lawv noj dab tsi.
Nws qhov kev tshaw tshab nyob rau hauv Tebchaws Europe thiab North America. Thiaj li, cov qaib ntxhw nws pib muaj peev xwm ya. Nyob rau hauv no txoj kev lawv kis mus rau tag nrho cov continents ntawm lub ntiaj teb. Qhov kev xav no tau pom zoo los ntawm kev tshuaj ntsuam genetic. 
Txawm li ntawd los, cov noog loj ya dav hlau loj loj yuav tsum ua kom muaj kev sib tw khiav tawm, uas yog yooj yim rau tua tsiaj txhu. Tias yog vim li cas hnyav heavyweights nyiam davhlau, tsis yog davhlau.
Koj puas paub? Nyob rau hauv lawv cov vaj tsev uas ntuj, caj npab xav txog hyenas thiab jackals los ua lawv cov yeeb ncuab phem, uas yog tsoo cov noog zes. Tsuas yog chicks txom nyem los ntawm tsov ntxhuav, tsov thiab lwm yam tsis txaus, raws li lawv tsis muaj peev xwm kov yeej cov laus..
Yog li ntawd, txhua lub cim tshiab ntawm cov noog loj heev pib tsim muaj zog ntawm cov ceg tawv, thiab lawv tis ceased ua kom tiav lawv thawj lub hom phiaj. Yog li, sab nraub ntej rau cov noog tau los ua ib qho cuab yeej me me hauv kev kho qhov kev ceev, txij li lub ntsiab thauj tau muab faib rau cov ceg.
Ostrich khiav yog ntaus los ntawm kev sib haum xeeb thiab tranquility. Cov Giants no tuaj yeem ua rau pua pua mais, siv lawv cov kev siv hluav taws xob zoo. Hauv ib kauj ruam, lawv tsiv tawm 4 meters tom ntej.
Vim zoo tsim tau cov nqaij tawv nqaij ntawm cov ceg, lawv cov taw yog lub caij nplooj ntoos hlav, lub teeb thiab cov mos lwj. Thiab thaum twg tus noog accelerates, nws zoo nkaus li nws cia li txav ceev nrog nws ob txhais ceg, vim hais tias nws lub cev tsis khoov, raws li yog ntse ntawm kev khiav. 
Ua li cas tus hneev dev yog thaum khiav?
Nyob rau hauv ntau zaus, ostriches yuav khiav ceev ceev txog li 70 mais ntawm ib teev twg, uas tsis yog txhua tus plaub ceg plaub hau ua tau. Rau sib piv: sprint ncaws pob thaum khiav sib tw kov yeej tsuas yog 30 kilometers ntawm tib lub sijhawm.
Koj puas paub? Nyob rau hauv cov qus, cov qaib ntxhw yog tsiag ntawv los ntawm kev ciaj sia muaj feem xyuam xim. Los ntawm feem ntau ntawm cov chases lawv tuaj tawm victorious, vim, khiav ntawm cov tsiaj txhu, cov Giants, nrog kev pab los ntawm tis, yuav dramatically hloov cov kev taw qhia ntawm lub khiav tsis txo lawv ceev. Tom qab cov tswv yim ntawm cov neeg raug tsim txom, tus yawg av qeeg yuav tsum tau siv sij hawm rov mus pib dua tus caum.
Cia wb mus ze saib saib ua li cas sai sai no cov neeg tsis tseem ceeb uas tau khiav ntawm cov neeg tsis muaj zog tau taug kev thiab khiav.
Nruab Nrab
Nyob rau hauv ib qho chaw nyob ntsiag to, feathered creature paces nyob rau ntawm ib lub ceev ntawm 20-30 kilometers ib teev, thiab thaum khiav, nws accelerates mus rau 50 kis lus mev. Raws li cov kws txawj, qhov no yog qhov ua tau vim yog lub cim ntawm lub cev khov kho ntawm lub hind thiab cov xub ntiag ntawm ib tug noog loj heev.
Nws tseem ceeb heev! Ib tug neeg ua liaj ua teb uas koom nrog cov qaib yuav tsum nco ntsoov ceeb toom. Tom qab tag nrho, feathered, tab sis lawv nco qab lawv cov neeg tuag taus zoo, lawv hnov mob heev heev rau kev cia siab rau. Qhov no yog vim li cas coob leej ntau tus neeg tuaj yeem tiv thaiv lawv tus kheej los ntawm kev ua tsis raws li kev quab yuam ntawm cov noog los ntawm cov thawj coj zoo, uas yog khi rau lawv tus kheej. Qhov loj tshaj plaws yog tias qhov siab ntawm no qauv tshaj qhov siab ntawm cov noog. Tom qab ntawd, tau ua raws li txoj ntsiab cai "leej twg siab, uas yog qhov tseem ceeb dua," tus tsiaj yuav ua siab ncaj ncees rau tus tsa tes ntawm tus tswv.
Nyob rau hauv lub xeem xyoo caum, zoologists tau them nyiaj ntau rau cov qauv ntawm lub cev musculoskeletal system ntawm cov noog. Lawv lub luag haujlwm tseem ceeb yog nthuav tawm ntawm qhov tshwm sim ntawm cov caj dab hauv kev sib piv nrog tib neeg lub cev. Nws yog ntseeg hais tias nyob rau hauv no txoj kev, cov kws tshawb fawb yuav muaj peev xwm nrhiav tau kev ntxiv rau khiav ncaws pob. 
Nyob rau hauv cov ntaub ntawv ntawm kev txaus ntshai
Thaum ib qho kev quav yub huam tuaj yos hav zoov hauv cov tsiaj qus hauv kev tua qaib, cov noog khiav tawm ntawm 70-75 mais / teev. Qhov no txhais tau hais tias nrog txhua thib ob nws overcomes txog 20 meters. Nws yog yam ntxwv ntawm qhov kev khiav qhov ntev ntawm cov nyom ostrich nce mus rau 7 m.
Koj tseem yuav xav paub txog tias nws yog ib qho tseem ceeb thiab yuav ua li cas noj cov qe qaib qe thiab yuav ua li cas siv ostrich rog.
Cov neeg tshawb nrhiav hais tias cov noog no tsis yog tshwj xeeb tshaj yog ntshai. Ib mile ntawm lawv tuaj yeem pom tias muaj kev phom sij thiab tau tawm ntawm lub sijhawm. Tsis tas li ntawd, caj dab, dua li cov peev xwm ntawm lawv lub zog, tsis nyiam mus tua cov neeg txom nyem, yog li ntawd, khiav tawm ntawm kev hem thawj, lawv xav khiav sai dua.
Max ceev
Lub ntiaj teb tau kaw cov ntaub ntawv thaum muaj kev ntxhov siab ntxhov hnyav los ntawm kev khiav ceev ntawm 92 km / h. Nyob rau tib lub sij hawm nws lub zog peev xwm tau txaus rau ib qhov chaw nyob ntev. 
Xwm tau txwv tsis pub hnav khaub ncaws ntawm lub sijhawm mus qis nyob saum nruab ntug, kev them nqi rau qhov khi ntawm cov ceg tawv muaj zog. Niaj hnub no, cov noog no tsis siv lub nkoj ua lub dag zog yuam ua rau lub zog, tab sis lawv tsuas yog nqaij, qe, thiab qis xwb.
Nws tseem ceeb heev! Hauv kev poob cev qhev, cov qaij vov tsom kwm zoo ntawm kev tsim khoom, muaj feem xyuam nrog lawv cov txheej txheem txhua xyoo hauv ib qho kev xyum zoo..Yog li ntawd, khiav ntawm lub peev xwm ntawm cov noog tsis raug rau lawv cov khoom tsim tau li cas. Cov phenomenon yog ntawm kev txaus siab tsuas yog nyob rau hauv xav breeders.
