Leruarua la Bowhead. Mokhoa oa bophelo oa bo-whale le bolulo

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Leruarua la Bowhead lea phela metsing a polar. 'Mele oa leruarua le motšehali le bolelele ba limithara tse 22, ha tse tona li makatsa boholo ba tsona ke limithara tse 18.

Boima ba leruarua la Bowhead, e ka ba ho tloha ho lithane tse 75 ho isa ho tse 150. Sena ha se etsahale khafetsa, maemong a mangata leruarua ha le qoele joalo, ka karolelano ke metsotso e 10-15 tlasa metsi.

Di fuduhela ka mohlapeng, moo di arotsweng ka dihlopha tse tharo: tse hodileng, tse hodileng ka thobalano mme di ka tlase ho dilemo tse 30. Ha ho ithutoa boitšoaro, ho ile ha hlokomeloa hore tse tšehali le malinyane li fuoa tokelo ea ho fepa pele, mohlape o mong kaofela o eme ka morao ho tsona.

Tlhaloso ea bowhead whale... E 'ngoe ea litšobotsi tsa leruarua la bowhead ke hore karolo e ka tlase ea' mele o moholo oa leruarua e bobebe ho feta 'mala oa mantlha.

Karolo e 'ngoe ea sebopeho ke boholo ba mehlahare. Molomo oa leruarua o phahame 'me o na le sebopeho sa arched.

Hlooho ea leruarua le ka pele e kholo haholo, kamanong le 'mele oohle, e nka karolo ea boraro ea bolelele bohle ba leruarua. Ha ho hlahlojoa ka hloko sebopeho, ho ile ha hlokomeloa hore pela hlooho ea phoofolo ena e anyesang ho na le sebaka se kang molala.

Moemeli oa mofuta ona ha a na meno, empa molomo oa molomo o na le palo e kholo ea lipoleiti tsa leruarua. Bolelele ba tsona ke ho tloha ho 3.5 ho isa ho 4,5 m, 'me palo ea tsona e fapana ho fihla ho 400.

Lera le ka tlasa letlalo la phoofolo e anyesang le teteaneng haholo - ho fihlela ho 70 cm, lera le joalo le thusa ho sebetsana ka katleho le khatello nakong ea ho qoela ka botebo, e boloka mocheso o tloaelehileng, oo leruarua la bowhead le tšoanang le thempereichara ea 'mele oa motho.

Mahlo a leruarua a manyane ka cornea e teteaneng, a le mahlakoreng, haufi le likhutlong tsa molomo. Nakong ea ho nyoloha kamora ho teba ho hoholo, leruarua le ka phatloha seliba sa jete tse peli ho fihla bophahamong ba 10 m.

Li-whale ha li na li-auricles tse kantle, empa kutlo e ntlafalitsoe haholo. Pono ea molumo oa phoofolo e anyesang e na le mefuta e mengata haholo.

E meng ea mesebetsi ea kutlo ho leruarua la polar e ts'oana le sonar, ka lebaka leo phoofolo e ka itsamaisang habonolo tlasa metsi, leha e tebile haholo. Bokhoni bona ba kutlo bo thusa leruarua ho tseba libaka le libaka.

Sebaka sa bolulo sa whale - likarolo tse ling tsa Leoatle la Arctic. Boholo ba likolo tsa liphoofolo tsena tse anyesang li fumaneha metsing a batang a Leoatle la Chukchi, East Siberia le Bering.

E sa tloaelehang haholo maoatleng a Beaufort le Barents. Nakong ea selemo le lehlabula maruarua a ea hōle metsing a batang, 'me mariha a khutlela lebopong.

Leha e le hore leruarua la hlooho o lula libakeng tsa Arctic, o khetha ho tsamaea metsing a hlakileng ntle le leqhoa. Haeba leruarua le hloka ho hlaha ka tlas'a metsi, le ka phunyeletsa leqhoa habonolo ka lisenthimithara tse 25 cm.

Sebopeho le mokhoa oa bophelo oa leruarua le ka pele

Maruarua a Bowhead ba khetha ho ba mehlapeng, empa ka linako tse ling u ka fumana batho ba masoha. Boemong ba ho phomola kapa ho robala, leruarua le ka holim'a metsi.

Ka lebaka la boholo ba eona bo hlollang le bo tšosang, leruarua le ka sehloohong le na le lira tse fokolang. Ke leruarua le bolaeang feela, kapa mohlape ke lona feela, le ka senyang phoofolo e anyesang, hangata bacha ba loantseng mohlape ba fetoha liphofu tsa maruarua a bolaeang.

Tlhaho, khetho ea tlhaho ha e ame batho haholo, empa ho felisoa ha mefuta ena ke batho ho lebisitse ho fokotseheng ho hoholo ha palo ea maruarua a lihlooho tsa tlhaho. Kajeno whale whale ka bukeng e khubelu, lefatšeng ho na le batho ba ka bang likete tse leshome feela. Ho tloha ka 1935, ho li tsoma ho thibetsoe ka thata.

Leruarua la bowhead le ja eng?

Lijo tse ka sehloohong tsa leruarua la polar ke plankton, li-crustaceans tse nyane le krill. Mothating ona, lijo li kena ka mokoting 'me ka thuso ea leleme li kenella ka mpeng.

Ka lebaka la sebopeho se setle sa leruarua, kamora ho sefa, hoo e batlang e le plankton eohle, esita le likaroloana tsa eona tse nyane haholo, li sala molomong oa leruarua. Phoofolo e seng e le kholo e monya lithane tse 2 tsa lijo ka letsatsi.

Ho ikatisa le tebello ea bophelo ea leruarua le ka pele

E 'ngoe ea likarolo tsa mofuta ona oa liphoofolo tse anyesang ke ts'ebetso ea pina ea ho nyalanya ke e tona. Bodumo ba medumo le motswako wa tsona di fetoha molodi o ikgethileng o kgothaletsang e motshehadi ho nyala.

Mamela lentsoe la leruarua le ka pele

Ntle le ho tsamaisana le molumo, leruarua le ka tlolela ka metsing 'me, nakong ea ho qoelisoa, la opa liatla holimo ka mohatla, sena se boetse se hohela tlhokomelo ea e tšehali. Likhoeling tse tšeletseng tsa pele, lesea le anyesoa lebese, 'me le lula le le haufi le' m'a lona.

Ha nako e ntse e ea, e amohela tsebo ea e tšehali 'me e iphepa e le' ngoe, empa e ntse e tsoela pele ho ba le e tšehali lilemo tse ling tse peli. Hangata ho na le batho ka bomong bao, ho latela lipatlisiso, ba phelang lilemo tse fetang 100.

Ho na le maikutlo a hore ka tlhaho ho na le baemeli ba mofuta ona, bao lilemo tsa bona li fetang lilemo tse 200, ketsahalo ena e sa tloaelehang haholo, empa leha ho le joalo, mofuta ona o ipolela hore ke ona o hlomphehang ka nako e telele liphoofolong tse anyesang.

Bophelo bo joalo ba nako e telele bo hlahisitse thahasello e kholo har'a bo-ramahlale le lefats'e lohle. Maruarua a polar a na le bokhoni ba lefutso bo amanang le tokiso e felletseng ea genome le ho hanela mofetše.

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