Esona silwanyana sikhulu kwihlabathi: Iinyani ezinomdla
Kwihlabathi elikhulu nelingaqondakaliyo lolwandle lihlala into, ngaphandle kwamathandabuzo, esona silwanyana sikhulu sakha sabakho: umnenga oluhlaza. Esi silwanyana sanyisayo sikhulu kakhulu siye sathimba izazinzulu, iingcali zendalo kunye nabathandi bendalo ngokufanayo kangangeenkulungwane. Ngokuphanda ubungakanani bayo, indawo yokuhlala, ukutya kunye nezinye iimpawu ezininzi ezinomdla, sinokuwuqonda ngcono ummangaliso omele le ngxilimbela yaselwandle.
Umnenga oBlue oMajestic: IColossus of the Oceans
La Umnenga oluhlaza (Balaenoptera musculus) ubambe isihloko sokuba ngu esona silwanyana sikhulu ehlabathini, ukodlula nezo dinosaurs zikhulu zakha zahlala eMhlabeni. Umntu omdala oqhelekileyo unokufikelela kubude obufikelela kwi-30 yeemitha kunye nobunzima obungaphezu kweetoni ezingama-200. Ukuze siqonde oku, umnenga omde kunebhasi yedolophu yaye unobunzima obulingana neendlovu zaseAfrika ezingama-33.
Ukongezelela kubukhulu bawo obumangalisayo, lo mnenga wahlulahlula ngesikhumba sawo esiluhlaza-ngwevu, esinamachokoza anamachokoza awenza abonakale ngendlela ekhethekileyo. Esi sigebenga saselwandle sihamba kakuhle elwandle, sihamba imigama emide sikhangela ukutya neendawo zokuzala.
Indawo yokuhlala kunye noSasazo lweBlue Whale
Iminenga eluhlaza inokusasazwa emhlabeni jikelele kwaye ifumaneka kuzo zonke iilwandle ngaphandle kwezona zibandayo kwiArctic. Iintshukumo zabo zinxulumene ngokusondeleyo nokufumaneka kokutya kwabo okuphambili, i krill, kunye neemeko zemozulu.
Ehlotyeni, badla ngokuhlanganisana kumanzi abandayo, anokutya okuninzi, njengalawo akuLwandlekazi lweAntarctic, kuMntla wePasifiki nakuMntla weAtlantiki. Ebusika, zifudukela kumanzi apholileyo nakweleenjiko ukuze zizale zize zibe namantshontsho azo. Le ndlela yokufuduka iqinisekisa ukuba bahlala befumana ukutya okuninzi kunye neemeko ezifanelekileyo zokuzala.
Isondlo: Imfihlelo yobungakanani bayo obukhulu
Ubungakanani obukhulu beminenga eluhlaza abukho ngenxa yobudla-kudla, kodwa kukutya kwabo okukhethekileyo nokuphumelela ngokugqithisileyo. Ezi zigebenga zitya kakhulu ikrill, iicrustaceans ezincinci ezenza ibubu elikhulu elwandle.
Ukondla, iminenga eluhlaza iqhuba inkqubo ebizwa ngokuba “yi-filter feeding.” Indlela ibandakanya ukuvula imilomo yabo emikhulu kunye nokuthatha amanzi amaninzi kunye nekrill. Emva koko basebenzisa i-filaments ekhethekileyo ebizwa ngokuba yi-baleen ukucoca amanzi kunye nokugcina i-krill. Ngexesha lokutya okuphezulu, umnenga oluhlaza unokutya ukuya kuthi ga kwiitoni ezi-4 zekrill yonke imihla, ubanika amandla afunekayo ukugcina ubungakanani babo obukhulu.
Ukuveliswa kwakhona kunye noMjikelo woBomi weBlue Whale
Ukuveliswa kweminenga eluhlaza sisiganeko esibaluleke ngokufanayo. Iimazi zidla ngokuzala ithole rhoqo emva kweminyaka emi-2 okanye emithathu, emva kokumitha kangangeenyanga ezili-3. Amathole, aziwa ngokuba ngamathole eminenga, azalwa enobukhulu obumangalisayo, anomlinganiselo ojikeleze i-12 yeemitha kunye nobunzima obuphakathi kwe-7 kunye ne-2 yeetoni.
Kwiinyanga zokuqala zobomi bawo, amathole omnenga atya kuphela ubisi lukanina, olutyebe kakhulu ngamafutha nezondlo, nto leyo ebangela ukuba akhule ngokukhawuleza. Ithole linokukhula ukuya kutsho kuma-90 eekhilogram ngosuku kwiinyanga zalo zokuqala, isantya sokukhula esothusa ngokwenene.
IiCuriosities kunye noLondolozo lwe-Blue Whales
Ukongeza kubungakanani bayo obunomtsalane kunye nokuziphatha, iminenga eluhlaza ineempawu ezininzi kunye nokuziphatha okuyenza ithandeke ngakumbi. Iingoma zabo, umzekelo, ziphakathi kwezona zandi zisezantsi nezinamandla ezinokuthi nasiphi na isilwanyana sivelise kwaye sinokuhamba amawaka eekhilomitha ngaphantsi kwamanzi. Ezi ngoma azisebenzeli unxibelelwano kuphela, kodwa zikwadlala indima ebalulekileyo ekuqhubeni ulwandle nasekufumaneni amaqabane.
Nangona yoyikeka kangako, iminenga eluhlaza isengozini yokuphela ngenxa yokuzingela kakhulu ngenkulungwane yama-20. Nangona i-whaling yorhwebo ivaliwe kakhulu namhlanje, abantu be-blue whale basalulama kancinci. Izoyikiso zangoku ziquka ukutshintsha kwemozulu, ungcoliseko kunye noqhankqalazo lweenqanawa.
Ukuze kukhuselwe ezi zidalwa zibalaseleyo, kuye kwasekwa iindawo ezininzi zokulondoloza ulwandle yaye imibutho isebenza nzima ukuyilondoloza. Ulwazi nenkxaso yehlabathi zibalulekile ukuqinisekisa ukuba izizukulwana ezizayo zinokusincoma esona silwanyana sikhulu ehlabathini, umnenga oyiblue whale.
Ukuqukumbela, ukufunda ngomnenga oluhlaza kusinika umbono wobuhle kunye nobuthathaka bendalo yethu. Ubukho bayo busisikhumbuzo seyantlukwano kunye nobungangamsha bobomi emhlabeni kunye noxanduva lwethu lokubugcina.