Isigebenga esingaziwayo: I-fin whale

Ukubeka kunye nobungangamsha, umhlaba waselwandle likhaya leyona nto ingaqhelekanga kwaye kwangaxeshanye uninzi lweengxilimbela ezingaziwayo emhlabeni: umnenga ogqityiweyo, okwaziwa ngokuba yi-fin whale okanye iBalaenoptera physalus. Esi silwanyana sihle kakhulu sibonakalisa ubungangamsha bolwandle, sintywizisa kububanzi obuluhlaza okwesibhakabhaka ngobuhle obudelelayo ubukhulu baso. Igama lomsebenzisi, masingene enzulwini yolwandle ukuze sijonge ngakumbi esi sigebenga singaziwayo.

Inkcazo yoMzimba yeRorqual Whale

Ithathwa njengesidalwa sesibini ngobukhulu emhlabeni, i umnenga ogqityiweyo Inokufikelela kwiimitha ezingama-27 ubude, yodlulwa kuphela ngumnenga oluhlaza. Iinkunzi ngokuqhelekileyo zincinci kunemazi, ezinobunzima obufikelela kwiitoni ezingama-70. Umzimba wayo ubhityile kwaye mde, ugqamile ngenxa yombala wayo oshiyanayo ukusuka kungwevu omnyama ukuya kumdaka ongacacanga.

Ezona mpawu ziphawuleka kakhulu zomnenga we-rorqual buphezulu, iphiko eligobileyo le-dorsal fin kunye ne-50-70 ventral slits ehamba ecaleni kwesisu sayo. Le grooves ivumela umlomo wabo ukuba wandise kakhulu ngexesha lokutya, ukwenza i i-fin whale sisitshaba esisebenzayo.

Indawo yokuhlala kunye nokuhanjiswa

I-fin whale luhlobo lwe-cosmopolitan, okuthetha ukuba inokufumaneka kuzo zonke iilwandlekazi, ukusuka kumanzi abandayo e-Arctic ukuya kwezona ndawo zishushu kakhulu. Nangona kunjalo, ubukho bayo buhlala buqhelekile kumanzi apholileyo kunye nabandayo, apho ukuxinwa kweplankton kunye neentlanzi ezincinci, umthombo wayo oyintloko wokutya, mkhulu.

Kuyaziwa ukuba iminenga engapheliyo ifuduka ngamaxesha athile onyaka. Ehlotyeni, zisiya kwiindawo eziphakamileyo, apho kukho ukutya okuninzi. Ebusika, zifudukela kumanzi ashushu ukuze zizale kwaye zizale.

Ukutya kunye nokuziphatha

Nangona ubukhulu bayo, i-fin whale itya kakhulu izilwanyana ezincinci zasemanzini ezifana nekrill kunye neentlanzi ezincinci. Sebenzisa iqhinga lokutyisa elaziwa ngokuba ukugcwalisa, apho ikhulisa umlomo wayo ukuze iginye amanzi amaninzi ize ihluze ukutya isebenzisa iindevu zayo.

Ngokuphathelele ukuziphatha kwawo, iminenga eyomileyo zizilwanyana ezihlala zodwa okanye zenza amaqela amancinane. Baziwa ngokukwazi ukutsiba emanzini, indlela izazinzulu ezikholelwa ukuba isenokuba yindlela yokunxibelelana okanye yokuphelisa izifunxi-gazi.

Ukuveliswa kwakhona kweRorqual Whale

Ukuzala kwenzeka ngokukodwa kwiinyanga zasebusika kumanzi afudumeleyo. Imazi izala ithole elinye emva kokumitha malunga nonyaka omnye. Okumangalisayo kukuba, iintsana ekuzalweni zinokulinganisa malunga neemitha ezi-6 kwaye zande ngokukhawuleza ubungakanani ngenxa yokusetyenziswa kobisi lwebele, oludume ngokutyeba ngamafutha.

Ukuvuthwa ngokwesondo ngokuqhelekileyo kufikelelwa kwi-5-10 iminyaka, kodwa nangona ixesha elide (ukwazi ukuphila ngaphezu kweminyaka engama-50), abafazi banokuba nabantwana abambalwa ngexesha lokuphila kwabo ngenxa yexesha elide lokumitha kunye nokunyamekela kwabazali.

Ubume boLondolozo kunye neeNgozi

Umnenga obizwa ngokuba yi<em>fin whale ubuzingelwa ngokurhweba ukuze ufumane intabalala yenyama neoli yawo. Nangona kuye kwakho ukuvalwa ngokupheleleyo ekulotyweni kweminenga kwihlabathi ukusukela ngo-1986, eminye iminenga eneentlanzi yancitshiswa kakhulu ngaphambi kokuba kumiselwe imiqobo.

Namhlanje, izoyikiso kwi-fin whale ngokuyintloko ziquka ukubanjiswa kwiminatha yokuloba, ukuguqulwa kwendawo yokuhlala ngenxa yezinto ezenziwa ngabantu, kunye noqhanqalazo lweenqanawa. Nangona kunjalo, kubalulekile ukukhankanya ukuba abantu babonakala bechacha, kwaye iintlobo zihlelwa "njengenkxalabo encinci" kuLuhlu oluBomvu lwe-IUCN.

Ukuzuza ukuhlalisana ngoxolo nesi sigebenga singaziwayo linyathelo elibalulekileyo kubudlelwane bethu neelwandle. Ukugcinwa kwe i-fin whale nazo zonke iintlobo-ntlobo zezinto eziphilayo zaselwandle Ibalulekile kwimpilo yesijikelezi-langa kwaye, ekugqibeleni, ukusinda kwethu.