Emanzini inyoni eluhlaza eluhlaza okwesibhakabhaka ngithole igama layo elingafani negama laseSpain elithi 'bobo' (igama lesiNgisi elithi booby 'booby'), ngesiRussia elisho "u-Clown".
Igama elinjalo elibonakala lihlambalaza lanikezwa inyoni ngendlela yalo yokuhamba kabi emhlabeni, okuyinto evamile phakathi kwabameleli bezinyoni zasolwandle. Ungahlangana nale nyoni engajwayelekile eziQhingini zaseGalapagos, eziqhingini zeGulf of California, ogwini lwaseMexico, eduze nase-Ecuador.
Izintandokazi zolwandle ezifudumele ezinama-booby, zibambe, ikakhulukazi hhayi kude neziqhingi ezomile lapho isidleke senzeka khona. Kuyathakazelisa ukuthi ezindaweni zokuhlala le nyoni ayesabi abantu futhi ngesibindi ixhumana nabantu abasondelene nabo, ukuze uhlangane nabaningi isithombe esine-booby enezinyawo eziluhlaza okwesibhakabhaka.
Isidleke siyindawo yokuphumula emhlabathini, ebiyelwe ngamagatsha namatshe amatshe amancane. Ngokuvamile, ama-gannets akhetha izihlahla namadwala. Ngasikhathi sinye, abazali banganakekela izidleke eziningana ezikude kakhulu komunye nomunye. Le nyoni incane ngosayizi.
Ubude bomzimba bomuntu omdala buba ngu-70-85 cm ngesisindo esingu-1.5-3,5 kg, izinsikazi zingaba zikhulu kancane. Ukubonakala kwale nyoni kuyinto engathandeki kakhulu - amapayipi ansundu-amhlophe, umlomo ompunga, umsila omncane omnyama namaphiko, kepha izinyawo ze-webbed eziluhlaza okwesibhakabhaka ziyisici esehlukile kule nhlobo. Umuntu angahlukanisa owesilisa nowesifazane ngosayizi wamehlo amakhulu (ngokubonakalayo, njengoba abesilisa benamabala amnyama azungeze amehlo).
Isimilo nendlela yokuphila
Indlela yokuphila enobuhlakani obuhlaza okwesibhakabhaka zasolwandle ngokuqinile. Kungakho ama-paws exhunywe yizinduna, kanti nekhala lenyoni lihlala livaliwe ukuze kugwemeke amanzi ekushayeleni, i-gannet iphefumula emakhoneni oqhwaku lwayo. Emhlabeni, inyoni ingatholakala kuphela ngenkathi kwakhiwa isidleke futhi inakekele inzalo noma ebusuku, lapho i-gannetwhale iphumule.
Ngemisebe yokuqala yelanga, abantu abadala bashiya isidleke bese beqala ukuzingela izinhlanzi. Izinyoni zingasukela inyamazane isikhathi eside futhi, ngesikhathi esifanele, zingene emanzini, zibambe. Kudlula kusuka endizeni kuye ekuweni ngaphambi kokumba, izinyoni zingafinyelela isivinini esingafika ku-100 km h, okuzivumela ukuthi zikwazi ukungena emanzini aqonde kumamitha angama-25 emanzini.
Njengomthetho, ukudoba akwenzeki ngesikhathi sokumba, kepha kusendleleni ebuyela ebusweni. Lokhu kungenxa yokuthi isisu esikhanyayo se-booby sibonakala kahle kusuka phezulu, kanti umhlane omnyama ufihla kahle umzingeli futhi nenhlanzi azimboni. Inqubo yokuzingela ezimweni ezingajwayelekile ingaqhutshwa yinyoni eyodwa, kepha imvamisa ukuzingela kwenziwa yiqembu (abantu abangu-10-12).
Zindiza phezu kwezindawo lapho izinhlanzi zibuthelana khona namakhanda phansi, zingene zingene emanzini, futhi uma eyodwa i-booby enezinyawo eziluhlaza okwesibhakabhaka ibona inyamazane, inika abafowethu isibonakaliso, emva kwalokho kube nokumba okuhambelanayo. Izinsikazi zindiza zizingela kuphela lapho zidingeka, kepha ngasikhathi sinye, ngenxa yobukhulu obukhulu, umuntu wesifazane angabamba izinhlanzi ezinkulu.
Esithombeni, ama-booby anezinyawo ezi-blue acwila izinhlanzi
Amaqiniso ambalwa amasha nge-booby yenyoni enamabala aluhlaza okwesibhakabhaka ayaziwa ngokwezifundo zakamuva. Umbala ongajwayelekile wama-paws ubangelwa ukondliwa kwabameleli balesi silwane, okungukuthi ubukhona bemibala ye-carotenoid enhlanzini.
Okusho ukuthi, emadodeni aphilile aphumelele ekuzingeleni, athola njalo ukudla okwengeziwe, ama-paws awo anombala okhanyayo kunezinyoni ezigulayo, ezibuthakathaka noma ezindala. Lokhu futhi kubangela isifiso esikhulu sabantu besifazane emadodeni anama-paws akhanyayo, ngoba amathoyizi omama esizayo ayaqonda ukuthi amathoyizi anempilo azotholwa kummeleli wobulili obuhlukile.
Umsoco
Ngemuva kokuzingela okuphumelelayo, amaduna abhekisa izidleke ukondla izinsikazi kanye nenzalo yezinhlanzi ezibanjiweyo. Kuyathakazelisa ukuthi i-gannet ayinikezi ukukhetha kunhlobo eyodwa yokubhukuda, ingadla noma yiziphi izinhlanzi ezingabamba (vele, konke kuncike ngosayizi wezinyamazane, inyoni elula inyamazane ezinhlanzini ezincane).
Imvamisa, izisulu yi-sardine, i-mackerel, i-mackerel, ne-booby ayideleli i-squid nokufakwa kwezinhlanzi ezinkulu - izinsalela zokudla kwezilwane ezinkulu. Kwesinye isikhathi ama-boobies akudingeki ukuba athulule amanzi, njengoba ekwazi ukubamba izinhlanzi ezindizayo ezintanta ngaphezu kwamanzi. Ngokungafani nabantu abadala, izinsana azidli izinhlanzi ezintsha. Ukudla sekugaywe ngabadala.
Uma kungekho-kudla okwanele kuwo wonke amantshontsho, abazali bondla kuphela omkhulu kakhulu, okwandisa amathuba akhe okusinda, amaphuphu amancane nababuthaka athola okokugcina.
Ukuzala kanye nokuphila isikhathi eside
Ekuqaleni kwenkathi yokuzalela, abesilisa abavela emaxeleni ahlukahlukene bakhombisa izinsikazi izitho zazo ezikhanyayo, ngaleyo ndlela zibonisa amandla nempilo. Ngaphambi umdanso wokuphelisa we-booby enezinyawo eziluhlaza okwesibhakabhaka owesilisa futhi uletha isithandwa sakhe ngesipho esincane ngesimo setshe noma segatsha, emva kwalokho umdanso uqobo ulandela. Umgadli uqondisa umsila kanye nezeluleko zamaphiko phezulu, ugoqa izinyawo zakhe ukuze insikazi ibabheke kangcono, ikhonkotha intamo yakhe bese ikhonkotha.
Uma le ntokazi ifanelana, abantu bayakhothama, bathinte izeluleko zezindebe zabo bese kuthi owesimame aqale ukudansa, enze umfanekiso womdanso oyindilinga ovela kwabakhethiweyo bakhe. Inqubo yokuqomisana nokudansa ingahlala amahora ambalwa. Kunezimbhangqwana ezimbili ezithandekayo kanye nesithembu. Insikazi iyakwazi ukwenza i-clutch entsha ezinyangeni ezi-8-9.
Isikhathi ngasinye lapho abekela amaqanda ama-2-3, ababazali bobabili bawanakekela ngokucophelela inyanga nengxenye. Inani elincane kangako lamaqanda libangelwa ubunzima bokuqunjelwa. Ama-gannets agcina ukushisa esidlekeni (cishe ama-degree angama-40) hhayi ngemizimba yawo, kodwa ngama-paws awo, athi ngalesi sikhathi avuvukale futhi afudumele ngenxa yegazi eligeleza kuwo.
Amakati angakwazi ukuzifudumeza ngokwawo enyangeni ethile ngemuva kokuzalwa, ngoba amaplamu abo namanje angavamile. Ngemuva kwezinyanga ezi-2-2,5, izingane esezikhulile zishiya izidleke, yize zingazi ukuthi zingandiza kanjani noma zibhukude, konke lokhu, njengokuzingela, kufanele zifunde zodwa, zibukele abantu abadala. Eminyakeni engu-3-4 yobudala, izinyoni zifinyelela ebusheni bese ziqala imindeni yazo. Ngaphansi kwezimo ezinhle, i-booby enezinyawo eziluhlaza okwesibhakabhaka ingaphila iminyaka engama-20.
Imvelaphi yegama
Imvelaphi yegama elithi Gannetwha iyathakazelisa impela. EsiNgisini, kuzwakala njenge-booby, futhi kuqhamuka ne-Spanish Bobo. Ungalihumusha leli gama ngokuthi "u-clown", "isiwula" noma "isiwula". Leli gama lenyoni kungenxa yokuthi emhlabeni uliphatha kabi. Kodwa-ke, njengezinyoni eziningi zasolwandle, ezisebenzisa ingxenye enkulu yempilo yazo emoyeni noma olwandle. Kodwa-ke, lesi akusona ukuphela kwesizathu. Umuntu akayona imbangela yokwesaba izinhlobo zezinyoni ezinjenge-booby enezinyawo eziluhlaza okwesibhakabhaka. Izithombe ezithathwe ngesikhathi sokucwaninga kwazo zifakazela ngokuqiniseka ukuthi ama-gannets awesabi ukuxhumana nabantu. Futhi lokhu, njengoba wazi, akuvikelekile ngaso sonke isikhathi.
Ukusatshalaliswa
I-booby enezinyawo eziluhlaza okwesibhakabhaka itholakala kuphela ogwini lolwandle lwePacific olusempumalanga. Indawo ehlala kuyo ugu lwe-Gulf of California, ugu olusentshonalanga yeNingizimu ne-Central America, iMexico nePeru. Sekukonke, kunamakhanda angaba yizinkulungwane ezingama-40 alezi zinyoni ezingajwayelekile emhlabeni. Iziqhingi zaseGalapagos ziyindawo ephambili ekhethwe yi-booby enezinyawo eziluhlaza okwesibhakabhaka. Indawo yokuhlala yalolu hlobo ngamadwala, umhlaba nezihlahla, yize izinyoni zazo zisetshenziswa kakhulu ukudala izidleke. Ama-gannets achitha iningi lesikhathi sawo olwandle.
EGalapagos, ama-ganne ezinyawo eziluhlaza okwesibhakabhaka avikelwe ngumthetho. Kukhona izidleke zamabhuzu ezinyoni angaphezu kwezinkulungwane ezingama-20.
Ukubukeka
Isici esiyingqayizivele se-boobies, yiqiniso, ama-paws aluhlaza okwesibhakabhaka, oluluhlaza okwesibhakabhaka noma oluluhlaza okwesibhakabhaka. Umbala wemilenze yamachwane ukhanya kakhulu. Ngobude, izinyoni zifinyelela amasentimitha angama-70-80 futhi zinesisindo esingamakhilogremu amathathu, kuyilapho izinsikazi zikhulu kancanyana kunabesilisa. Amaphiko alezi zinyoni ezixakile afinyelela kumitha eyodwa nesigamu.
I-plumage of a booby brown and white. Izici zokushintshana kwalo zinikeza i-booby enezinyawo eziluhlaza okwesibhakabhaka "ukubukeka okunamahloni". Umlomo wale nyoni unombala oluhlaza okotshani. Amehlo enyoni asezinhlangothini zoqhwaku, kodwa abheke phambili, aqinisekise umbono wayo omuhle. Izinyoni zinamehlo aphuzi, kepha i-iris yeduna ikhanya kakhulu kunaleya yabesifazane. Ngaphezu kwalokho, ngokubukeka, amehlo abo abonakala emakhulu ngenxa yendandatho yengulube etholakala eduze kwabafundi.
I-booby enezinyawo eziluhlaza iphefumula emakhoneni omlomo, ngoba emakhaleni akhe kuhlala kuvaliwe. Lokhu kuvumelana nakho esikhethekile kuyadingeka enyameni ngesikhathi sokumba.
I-booby enezinyawo eziluhlaza okwesibhakabhaka. Ngabe idlani le nyoni eyingqayizivele?
Ukudla kwe-gannet kuqukethe izinhlanzi ikakhulukazi. Lawa ama-anchovies, ama-sardine nama-mackerel, ama-mackerel. Ukubamba inyamazane enjalo, izinyoni zingena emanzini zijule ngamamitha angama-25. Ngaphezu kwalokho, zingafinyelela isivinini ngaphansi kwamanzi kuze kufike kumakhilomitha ayi-100 ngehora. Kwesinye isikhathi akudingeki uzele ukudla. Amakhowe angabamba izinhlanzi ezindizayo ezihamba ngaphezu kolwandle.
Ngaphezu kwalokho, lezi zinyoni azenqabeli ukudla ama-squid noma ukufakwa kwezinhlanzi ezinkulu ezitholakala eduzane nasePanama.
Izici Zokuzingela
U-Olusha angazingela yedwa noma ngababili noma ngephakethe. Umhlambi onjalo, ovame kakhulu wezinyoni eziyishumi nambili, undiza ezindaweni ezihlala kuzo izinhlanzi ezincane. Uma umhlambi ubona inyamazane, wonke amalungu ayo atshona ngasikhathi sinye. Lokhu bangakwenza kusuka ekuphakameni kwamamitha ayikhulu. Ama-gannets adla izinhlanzi ezibanjiwe lapho, ngaphansi kwamanzi.
Iqiniso elithokozisayo ukuthi abamba izisulu hhayi lapho diving, kodwa lapho diving. Lokhu kungenxa yokuthi ingemuva kwezinhlanzi eziningi zimnyama futhi zihlangana ngombala ngobukhulu bamanzi. Ngakho-ke, njengoba usijule, kunzima ukubabona. Isisu sinombala ogqamile, ngaphezu kwalokho, sinephethini lesiliva. Le ndlela yokuzingela isebenza ngempumelelo enkulu.
I-booby enezinyawo eziluhlaza okwesibhakabhaka (i-kuksha), esizingela yona ngokwayo, ayikaze idle nayo yonke enye impahla. Bazama ukuhlala bodwa. Ukuzingela izinhlanzi kuvame ukwenzeka ekuseni noma kusihlwa.
Izindlela zokuzingela owesilisa nowesifazane zihlukile. Okokuqala, lokhu kungenxa yobukhulu bomzimba wabo. Njengoba izinsikazi zisinda, zingakwazi ukujula ngokujulile futhi zibambe izinhlanzi ezinkulu. Umzimba wesilisa ulula kakhulu, ngakho-ke awakwazi ukucwila ngokujula okukhulu. Kodwa-ke, imvelo yabavuza ngomsila omkhulu, osiza ukudoba ngama-gorges. Ngakho-ke, uma umbhangqwana uletha amaphuphu, owesilisa uwalethela ukudla kaningi, kodwa kuncane ngosayizi.
Umdanso womshado
Uma enye yezinyoni inokuziphatha okukhethekile ngababili, le yi-booby enezinyawo eziluhlaza okwesibhakabhaka. Umdanso wokulinganisa wenziwa owesilisa ukuze kukhange ukunakwa kowesifazane amthandayo. Ngesikhathi "sokwenza" kwakhe owesilisa uzama ukugxila kuma-paws akhe, ngoba aqhakazile, maningi amathuba okudala. Ushaya intamo yakhe, akhiphe umsila wakhe obukhali bese eshintshana ngokuvusa amadlingozi akhe akhanyayo. Ukwenza umdanso, inyoni ihamba naye ngezimpempe ezingapheli.
Ngemuva kokuba ukuthandana nobumnene kwamukelwe, ama-gannets ayakhothama, ngemuva kwalokho umdanso uphinda futhi, kodwa usuhlanganisile. Baphakamisa futhi behlise ama-paws abo, njengokungathi bayavuma ngale ndlela ekwakhiweni kwezindlu ezihlangene. Ngaphezu kwalokho, owesilisa uletha intombi yakhe ngehlumela elikhanyayo, okuthi kamuva lihlomise isidleke. Kungemva kwalokhu kuphela lapho isiko libhekwa njengokuqedwa.
Ubunzima ekukhetheni umlingani
Ososayensi sebefakazile: umbala ogqamile wowesilisa, amaqanda amaningi wesifazane angazalela. Ukukhetha ngokucophelela umlingani kuhambisana neqiniso lokuthi insikazi idinga ukwaba inani lezinto ezizokwabelwa iqanda elilodwa. Inani elikhulu lamaqanda ku-clutch lisho umthamo omncane we-yolk kulowo nalowo kubo, kepha uma abazali benedatha enhle yofuzo, inzalo izoba lula.
Kodwa-ke, umbala wemilenze awukhathaleli kuphela lapho izintokazi zikhetha abalingani bazo. Abesilisa nabo bayakunaka lokhu. Owesifazane onamawashi akhazimulayo uyakwazi ukubeka amaqanda amaningi, futhi izinduna zesilisa zizinaka ngokukhethekile. Uma amaqanda ku-clutch ehlukile ngosayizi, khona-ke ukunakekelwa kwabazali kuzoqondiswa kulawo amakhulu.
Esimweni lapho umbala we-paws wabantu ngamunye ufana, izinyoni zizophatha kahle yonke inzalo, kungakhathalekile ukuthi zingakanani.
AmaCuba
Izinyoni eziningi zinakekela inzalo yazo. I-booby enezinyawo eziluhlaza nayo yenza lokhu. Imikhaza izalwa incane kakhulu futhi ingasizi ngalutho, kepha ngokushesha imizimba yazo imbozwe phansi. Ngenyanga yokuqala amawundlu awakwazi ukulawula ngokuzimela amazinga okushisa womzimba. Kungemva kwesikhathi esithile, i-fluff ithathelwa indawo izimpaphe. Amachwane ahlala esidlekeni izinyanga ezintathu, kuthi emva kwalokho ashiye.
Ukuqinisekisa ukusinda kwenzalo, ama-gannts ayaphoqelelwa ukuthi azingele njalo futhi azilethele ukudla. Lokhu kuvame ukwenziwa owesilisa, kepha uma okuphakelayo kuncane, insikazi ingaqala ukuzingela. Kwesinye isikhathi umbhangqwana ushiya ndawonye esidlekeni, kepha lokhu kuziphatha kuyingozi impela. Izitha zemvelo zamachwane ama-booby ama-skuas nama-frigates. Bopha izidleke ezinganakekelwa. Uma ama-ganne elahlekelwa yinzalo yawo, aqala ukubeka amaqanda futhi, kodwa abhekelwe kakhulu.
Ngemuva kokuba osemusha ephumile esidlekeni, masinyane ungena ngokushesha olwandle, yize namanje engazi ukuthi ukubhukuda noma ukundiza kuleliphi ubudala. Inyoni ngayinye inamasheya akhethekile omoya ngaphansi kwesikhumba sayo esivimba amantshontsho ukuthi angangeni. Bafunda ukwenza lokhu njengoba isisindo sabo sanda.
Ukuthomba kulezi zinyoni ezishisayo kwenzeka eneminyaka engu-3-4.
Kungani i-gannet inemilenze eluhlaza okwesibhakabhaka
Umbala oluhlaza okwesibhakabhaka wama-gannet paws uhlinzeka ngombala okhethekile - i-carotenoid. Kuhlala kukhiqizwa inkukhu ngenxa yokudla okunotha kwezinhlanzi zasolwandle ezintsha. Ngaphezu kwalokho, le pigment iyi-antioxidant futhi ivuselela amasosha omzimba. Ngakho-ke, umbala wezidwaba zenyoni encane futhi enempilo uzoba okhanya ngokwengeziwe. Uma inhlanzi entsha inyamalala ekudleni kwe-booby enezinwele eziluhlaza okwesibhakabhaka, umbala wama-paws awo uba mnyama ngemuva kwamahora angama-48. Iqiniso ngukuthi ekwenzeni ama-carotenoids, kudingeka inani elilinganayo lama-lipids, umthombo wawo oyizinhlanzi zolwandle.
Umbala ongajwayelekile wama-paws ubamba iqhaza elikhulu esikhathini samanje. Kungakuqala lapho i-booby enezinyawo eziluhlaza ibhekisisa khona. Kungani ama-paws aluhlaza eheha izintokazi? Umbala ogqamile uwuphawu lwempilo enhle kanye nokuvikelwa komzimba okuqinile kowesilisa. Ngokuqondene nabesifazane bezinye izilwane, into esemqoka ye-gannetwhale ukuthola inzalo enempilo ngofuzo. Ngakho-ke, kungenzeka ukuthi akhethe owesilisa one-aquamarine noma i-paws eluhlaza okwesibhakabhaka egcwele. Abesilisa, abama-paws abo aluhlaza okwesibhakabhaka, bagijimisa ubungozi bokuthi bashiywe bhangqa. Ngokukhula kweminyaka, ukugcotshwa kwemibala emadodeni kuncishiswa kakhulu, okunganikeli ekukhuleni kokuthandwa kwabo phakathi kwabesifazane.
Imithetho yempilo yama-boobies aluhlaza okwesibhakabhaka
1. Ama-gannets achitha iningi lempilo yawo olwandle. Zidinga umhlaba kuphela ukuze zidleke zikhulise inzalo.
2. Kungenzeka ukuthi umbhangqwana ungakwazi ukubamba ukudla okwanele kwenzalo yawo. Kulokhu, kukhethwe amachwane amakhulu kunawo onke futhi anamandla, futhi ama-gannets anika konke ukudla okuvunayo kuye. Ngakho-ke, baqinisekisa ukusinda okungenani kwenkukhu eyodwa ukuze aqine ngokwanele ukuqhubeka nohlobo.
3. Ama-boobies anezinyawo ezi-Blue angaxhumana nomunye. Benza imisindo ekhakhayo nemikhonto. Ukuxhumana okunjalo kudlala indima ebalulekile ngesikhathi sokuzala futhi kamuva, lapho kuba nesidingo sokukhulisa ngokubambisana inzalo.
4. Ososayensi namanje abakwazanga ukusungula isikhathi lapho ama-ganne angahlala ngaphansi kwamanzi. Izinketho ziyahlukahluka kusuka kumasekhondi ambalwa kuya kwimizuzu emibili. Ukujula okukhulu lapho bantshontsha khona lapho bezingela izinhlanzi nakho akwaziwa.
5. Ama-ganne anamuhla awakhi izidleke ezigcwele ngokuphelele. Banyathela udangala emhlabathini futhi bavimbe ngenani elincane lamagatsha.
6. Ama-boobies anezinyawo eziluhlaza okwesibhakabhaka angenye yezinyoni ezimbalwa zohlobo lwazo, emindeni yazo engabizwa ngokuthi "yimindeni emikhulu." Imvamisa, abamele umndeni we-gannet banezinkukhu eyodwa kuphela.
20.07.2018
I-booby enezinyawo eziluhlaza okwesibhakabhaka (iLat. Sula nebouxi) ingeyomndeni ka-Olushevye (Sulidae) ovela ku-oda Pelicaniformes (Pelecaniformes). Le nyoni yasolwandle ayesabi nhlobo abantu, ngakho-ke ingabanjwa kalula ngezandla ezingenazandla. Ulahlekelwe ngokuphelele umuzwa wokuthi abaleke, ngakho abaseSpain bambiza ngesiwula (i-bobo).
Ama-boobies anezinyawo eziluhlaza okwesibhakabhaka ahlukile ezweni elinamakhanda. Umbala wazo ugcwala udalwa ukudliwa kwezinhlanzi, emzimbeni zazo ezinemibala eminingi yokufaka imibala. Lapho ushintsha imenyu ejwayelekile, ngemuva kwezinsuku ezimbalwa ama-paws ajike abe mpunga.
Ukuziphatha
Ama-boobies anezinyawo eziluhlaza ahola indlela yokuphila yansuku zonke, akhombisa ukwanda komsebenzi ekuseni nakusihlwa, ngezikhathi ezithile ebusuku. Ziyagxuma futhi zindiza ngokuphelele, zihlala isikhathi eside emoyeni. Ifuna inyamazane, imvamisa ihamba ifinyelela ku-20-25 m ngaphezu kwamanzi. Ngemuva kokubona inyamazane engaba khona, izinyamazane ezinamaphiko ngetshe ziwile phansi. Okwamanje ukuxhumana nemvelo yasemanzini, ijubane labo lingafinyelela ku-90-95 km / h.
Bawugcoba njalo amapayipi uketshezi olunamafutha olukhiqizwa ngamanyikwe. Ukuze usebenzise kalula, itholakala ngaphansi kwesisekelo somsila. I-grease inezindawo ezinhle kakhulu eziphephisa amanzi futhi ivikela ekulimaleni ngokweqile.
Esikhathini sokudlekwa, amaSula nebouxi akha amakoloni wezinyoni ezingamakhulu amaningana. Imvamisa ezinye izinhlobo ezihlobene nazo zihlala nazo.
Ukudla kuqukethe izinhlanzi zasolwandle ezihlukile. Izinyoni ezinezinwele zithanda ukulandelela izikole ezinkulu ukuze zonge amandla, kunokuba zizijikijele enhlanzi eyedwa. Imvamisa, bayakwazi ukudla kuma-sardines (Sardina), ama-anchovies (ama-Engraulis), ama-mackerels (ama-Scombridae) nezinhlanzi ezindizayo (i-Exocoetidae). Ngezikhathi ezithile kuphela lapho zidla khona kuma-squid (Teuthida) nezilwane ezintantayo.
I-Grouse ukuzingela yodwa nangamaqembu afinyelela kwabangu-12. Lapho isibambe inyamazane, inyoni iyayidla ngokwayo, ibalekise abantu bayo abangaphumeleli. Ugwinya inhlanzana encane isiyonke, bese edwengula enye enkulu ibe yizicucu. Iningi lezinyamazane lidliwa ngaphansi kwamanzi.
Uma ewa ephakeme ngamamitha ayi-100, izinyoni zingazicwilisela emanzini bese zibamba izinhlanzi ngokujula kwama-25 m.
Ukuvikela ubuchopho ekucindezelweni okukhulu okwethusayo, igebhezi linesikhala esikhethekile somoya esidonsa kahle amandla omthelela.
Isifiso sokudonswa ngokujulile sithinteka kakhulu ngabesilisa. Ngakho-ke zinikeza ithuba lokuthi izintokazi zidle ezingaphezulu kolwandle. Ngesikhathi sokuphakela amaphuphu, obaba bashintsha amaqhinga nezinhlanzi ngaphezulu emanzini angajulile.
Incazelo
Ubude bomzimba wabantu abadala bufika ku-75-80 cm, ngamaphiko ama-cm 140- 152 cm.Iisisindo sisukela ku-1500 kuya ku-1600 g. Akukho-dimorphism obonisiwe. Izinsikazi zikhulu kancanyana kunabesilisa.
Izimpiko ziba nsundu. Izimpaphe ezinsundu emhlane zinethambo elimhlophe. Amapulangwe asele amhlophe. Uqhwaku olude luphela ngokugoba phansi, okwenza kube lula ukubamba inyamazane. Isikhumba sasoqhwaphu nesiseduze ngaphandle kwezimpaphe sivele simpunga.
Umsila obunjwe njengobuchopho endizeni usebenza njenge-helm. Izimpiko eziphakeme nezicashile zinikeza ithuba lokuhlala isikhathi eside emoyeni. Ukuvuleka kwamakhala kuvala ngokuzenzakalelayo lapho kucwiliswa emanzini.
Iminwe ihlome ngemichilo emincane, phakathi kwayo kukhona ulwelwesi lokubhukuda oluhlaza okwesibhakabhaka. Inethiwekhi eminyene yama-capillaries, esebenza ukufudumeza ukubumbeka ngesikhathi sokufakwa ngaphakathi.
Isifiso sokuphila kwama-boobies anezinyawo eziluhlaza sasendle yiminyaka engu-15-17.