Izindaba Umphakathi, Uhlobo
I enkulu iplanethi isilwane: imikhomo okwesibhakabhaka
Izilwane ngobukhulu e izilwandle zomhlaba, imikhomo blue sewenziwa omkhulu ngempela - kuze kufinyelele 33 amamitha balinganise lezi zidlakela kukhona amathani angaphezu kuka-150. Ukuze uqhathanise, inani elifanayo ukala 50 zase-Afrika. Ngokuba ukuphila kwakhe asebenzayo isilwane liyadingeka nsuku zonke kilojoule esigidini. I-blue whale kungokwalabo imikhomo baleen (uhlobo lwe imikhomo), ukudla kwawo ejwayelekile - kuba inhlanzi encane, ezinamagobolondo, ama-squid, plankton futhi krill.
Ukuthola ukuthi inani lokudla Kulula uma wazi lapho eziningi ezinamagobolondo. On the okuthiwa "Amasimu ukusuthisa", lapho emakamu esikhulu kunazo zonke-plankton, kungenzeka ukubona imikhomo eziningana, kodwa abe ngaphezu 3 abantu eqenjini, ngokuvamile hhayi eqoqwe.
imikhomo Blue zitholakala kulo izilwandle zomhlaba kusukela e-Arctic kuze kuyofika e-Antarctic, kuyilapho ukuhlukanisa subtypes eziningana:
- enyakatho;
- eningizimu;
- yemifino;
- Indian.
Big Umkhomo oluhlaza akanawo umuzwa ebucayi yokuhogela, futhi cishe bancishwa emehlweni, kodwa nguye ophethe ukuxhumana ngokusebenzisa "ukucula." Isosha umsindo kwabesilisa ngenkathi yokukhwelana. Le ngoma njenge-nihewule esesabekayo ungezwakala at ibanga 1600 km. Abesifazane, kakhulu, ngezinye izikhathi ukukhuluma, kodwa kuphela cub wakhe. Ngokusho ososayensi, imikhomo blue ihlaziya imisindo, ngoba lokhu kuyindlela kuphela ngabo ukuxhumana nezwe elingaphandle. Ngaphezu kwalokho, qaphela nobunyoninco nokuhlakanipha lezi zilwane.
zizalela sonyaka kwenzeka njalo eminyakeni emibili. On esindayo yenzalo kuthatha izinyanga 10-11. Ngemva kokuzalwa komntwana wentombazane feeds ngayo ubisi izinyanga 7-8, ekupheleni kwalesi sikhathi, umkhoma abasha unesisindo esingamathani angaba ngu kuka-20 no ubude ngamamitha angaphezu kuka-20. Ngalesi sikhathi, isikhumba ingane isivele umxhwele izimuncagazi zasolwandle. ucwaningo okuqhubekayo likhombe nabaningi zangaphakathi nezangaphandle izimuncagazi whale. Phakathi nokuhlala kwakhe khona emasimini ukusuthisa isilwane omdala embozwe diatoms, ososayensi zibale 31 zezintaka whale ku eyodwa kuphela. Kule isikhumba ezincelisayo ophuzi ngombala, mollusk eziningi bahlala endaweni efanayo, khona komzimba wesilwane.
Iminyaka, imikhomo blue zabulawa ngumuntu. Ukuze isizinda whalebone, bantu ukuba ikhuluphale futhi sincika baye ezingelwa lezi zidlakela, ukunciphisa labantu izikhathi 100. Ekuqaleni kwekhulu lama-20, ukudoba engalawuliwe kuye kwaholela kulokho manje Izwe alinaso abangaphezulu kuka-1500 abantu. Izibikezelo ososayensi esidumazayo: azinakulondolozeka ukubuka kusukela anyamalale ubuso Earth. ENyakatho ye-Atlantic okwamanje azikho imikhomo omdala ezingaphezu kuka-100.
yokuqothulwa yabo iyaqhubeka ngenxa elahla phansi olwandle, uwoyela uyavuza futhi Ukungenela komuntu asebenzayo ngokwemvelo. Ihamba kancane kakhulu wokukhula ongokwemvelo kuvimbela kakhulu resumption sabantu, lapho okuqukethwe ezimweni yokufakelwa akunakwenzeka ngoba ubukhulu esincelisayo.
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