Bowhead Whale - an giant ulwandle umdla

Bowhead whale - sisilwanyana esincancisayo besive umyalelo Cetacea, kusapho neminenga ikhamisile. E Latin ibizwa ngokuba Balaena mysticetus. Kwakukho ixesha xa inani labemi ezi zilwanyana wahlala elwandle kuzo zonke yoMntla saseNtla. Noko ke, namhlanje zifumaneka kuphela wethu kunye Okhotsk kweelwandle, kummandla Svalbard, Davis Strait kunye Hudson Bay. Izazinzulu ziqikelela ukuba inani lilonke kwezi ezincancisayo ingaphantsi kwe-10 000 abantu.

Bowhead unjengengwenya ubungakanani blyuvalu yesibini kuphela. ubude bayo ngaphezu kwe-20 m, apho intloko uza wesithathu. Ubunzima inokuba ukuya kwiitoni ezingama-130. Okubangel 'umdla kukuba, iimazi inkulu kune into eyindoda. Umbala kukhethwa mnyama, kuphela phantsi kwemihlathi esezantsi inendawo ebomvu enkulu emhlophe.

Ubume kwisisu zomlomo ezinxulumene ethile kunye nomfanekiso yonikezelo. Emihlathini egosogoso iipleyiti ezininzi (400 ii-PC.) Of-4 m ububanzi engaphantsi kwe-0.3 m, umnenga ekuthiwa intshebe ubude. whale Bowhead utya ezincinane kunye neentlanzi ezincinane. Ngokuvelisa ukutya, yena isecaleni ngomlomo wakhe evulekileyo. Bonke yawa emlonyeni, walibala Emacebeni kokuphalwa ulwimi, wabaginya. Weight zokungenisa ukudla imihla ngemihla kuqikelelwa kwiitoni ezingama-1.8.

amaphiko ayo pectoral kukuncwina, ezinatyisiweyo elirhangqiweyo. isikhumba Smooth umnenga bowhead. Amafoto thaca kwiphepha ukubonisa ukungabikho Amahlathi horny kwaye ufake kwezilwanyana. fat ongama kwi omdala omalunga-70 cm. Kubaluleke kakhulu, okt. To. yokungenelela ngokugqithiseleyo uxinzelelo lwamanzi xa kwamanzi, kwaye ikhusela emzimbeni. ubushushu bomzimba wabo iqhele kubaminye njengoko ebantwini (ukuba ezanyisayo). Amehlo amancinci kunye inwebu eqinileyo. Kwimiphumo amanzi amtyuba ukuba akhuselwe ngamadlala ezikhethekileyo avelisa fluid oyile-based. Umbono emanzini ubambekile kumphezulu ngcono.

Greenland kit ekwaziyo diving ukuya kubunzulu 0.2 km kunye edadayo emva kwemizuzu engama-40. Ixesha elichithwa ngaphantsi kwamanzi ixhomekeke umoya emiphungeni. emathatheni akhe afumaneka kwi phezulu, ukuba zivulwe kuphela ngexesha inhalation-ngumphunga, izihlunu kolunye ngeempumlo ukukhusela ukungena kwamanzi emiphungeni. siphefumla Whale iqala umphezulu, isiphumo lithende, ukuphakama kwayo ngaphezulu-10 m. Imfuneko bafake umoya yenza ezi ezanyisayo Ukubetha ice ubukhulu-25 cm.

Pinna hayi, kodwa udaba yenziwe kakuhle kakhulu. Indlebe yangaphakathi aqonde futhi intlokoma cuke isandi kunye. Amaqondo ubanzi ukwenza izandi. Bowhead whale sele sonar ukuba bakwazi ukukhangela malwandla ziyatyeba. Ixesha phakathi isandi kunye nokubuyiswa isilwanyana ibonisa umgama ukuya into ethile endleleni.

Ngamanye amaxesha whale polar (likwabizwa isigebenga) uyaxhuma ephuma emanzini, amaphiko izandla kunye umzimba olubi elinye macala. Ezi ekhwela ezenzeka kwixesha zemfuduko kunye zikhwelwe.

Veliswa sele ngokwaneleyo wafunda, nangona kusaziwa ukuba ukukhulelwa ithatha iinyanga 13. Ithole uzalelwa weemitha ezi-4. Kulo nyaka, oko Esukelana ngobisi lukanina. Iminenga ebudodeni balalane engama-20. Baphila-avareji engama-40.