Imiyalo emine yanamuhla yama-ratites kanye namaqembu okungenani amathathu aqothulayo wezinyoni azikwazi ukundiza futhi ayinayo i-bone keel ezigubeni zazo, lapho izicubu ezinamandla zamaphiko zinamathele ezindizayo. I-Ostriches, i-kiwi ne-emu nazo zibizwa ngokuthi ama-ratites.
Uma kubhekwa imiphumela yokuhlaziywa okusha, balahlekelwe amandla abo okundiza hhayi ngenxa yokuguqulwa okuthile kwi-DNA, kodwa ngenxa yezinguquko emthethweni wokulawulwa kwezakhi zofuzo, futhi lokhu kwenzeka kaningana ngesikhathi somlando wabo wokuziphendukela kwemvelo, babhala iqembu lesazi sebhayoloji likaHarvard uScott Edward embhalweni oshicilelwe ephephabhukwini leSayensi.
Ukuguqulwa kokushintsha kwesakhiwo nezakhiwo zamaprotheni afakiwe, noma kuphazamise ngokuphelele ukukhiqizwa kwawo. Ngaphezu kwalokho, amaprotheni afanayo angenza imisebenzi ehlukahlukene izicubu namaseli ahlukene, ngakho-ke ukulahlekelwa kwawo kuvame ukuba yingozi kakhulu. Ngakolunye uhlangothi, izinguquko ezilawulayo zenza sikwazi ukwenza kahle “umsebenzi” we-DNA, ufuzo namaprotheni, ngokubeka engcupheni impilo yento yonke. Lokhu kwenzeka, ngokusobala, phakathi kokhokho bezilinganiso zamanje.
Ososayensi Izinyoni eziyi-11 zadatshulwa ngumbala, kufaka phakathi ama-ratites ayisishiyagalombili, nemininingwane etholakala ye-DNA yezinhlobo eziningana ezindizayo nezinhlobo zezindiza ezingama-25. Ngemuva kwalokho banquma inqwaba yezindawo ezilawulwayo ze-DNA ejwayelekile kulezi zinyoni - kwatholakala inani elingaphezu kwezinkulungwane ezingama-280, futhi izingcezu zazo ezingama-2355 zazingafani nokuthi amariti aqongelela ngokushesha izilinganiso, kunakwamanye. Kubukeka sengathi banesibopho sokulahleka kwekhono lokundiza nakho konke okuhlobene nakho.
Ososayensi bakhombisile ukuthi uhlobo oludala ukukhula kwamaphiko ezinkukhu zenkukhu empeleni "luvula" uma unamathisela engxenyeni elawulayo yenyoni ye-chinamu endizayo. Kepha akasebenzi nomkhakha ofanayo wokulawula, obolekwe kwiNanda engenabhanoyi.
Ngokusho kwababhali, konke lokhu kukhombisa kalula ukuqhathanisa okungahle kwenzeke lapho ukulahleka kwendiza kwenzeke. Ngokusobala, okhokho bama-ratites basinda kule nqubo okungenani kathathu, futhi mhlawumbe amahlandla ayisihlanu phakathi komlando wabo wokuziphendukela kwemvelo.
Animal Reader - Umagazini online mayelana nezilwane
I-ibis enemilenze ebomvu inikezwa ikusasa elidabukisayo - ingenye yokuqala ohlwini lwezilwane ezisengozini yokuphela.
#animalreader #animals #animal #nature
Animal Reader - Umagazini online mayelana nezilwane
I-allissator ye-Mississippi inkulu kunazo zonke izingqimba ezimbili ezikhona. Hlala Mississippian.
#animalreader #animals #animal #nature
Animal Reader - Umagazini online mayelana nezilwane
Izingwenya eziyizimungulu ziyizilwane ezihuquzelayo zomndeni wezingwenya zangempela. Lezi ezincane kunazo zonke.
#animalreader #animals #animal #nature
Animal Reader - Umagazini online mayelana nezilwane
Ibhubesi lasolwandle lishiswe ilanga kusihlalo wedeski: ividiyo eyadutshulwa olwandle yanqoba i-Intanethi
http://animalreader.ru/morskoy-lev-pozagoral-na-shezl ..
Ngolunye usuku kwavela ividiyo ehlekisayo kunethiwekhi, efakwe yiBelgian iphumule kwenye indawo ogwini lolwandle.
Animal Reader - Umagazini online mayelana nezilwane
Izimpisi zithathwa ngokungafanele ngesibindi. Eqinisweni, siyisidlakudla esihlakaniphe kakhulu. Ngakho-ke, ngiyabonga.
#animalreader #animals #animal #nature