I-whale enkulu ifuna ukukhuselwa

Nabani na onentshisekelo encinci kwi-biology uyazi ukuba i-whale eluhlaza yi-whale enkulu kwihlabathi. Iifoto kunye namavidiyo apho esi silwanyana sasilwandle sichazwe khona, soloko sibetha ababukeli. Emva kwakho konke, uhlaza okona aluhlaza nje kuphela. Yona isilwanyana esikhulu kunazo zonke ezikhoyo emhlabeni namhlanje. Kwaye ezinye i-paleontologists zithetha ukuba ngokwenene isilwanyana esikhulu kunazo zonke ebezikho emhlabeni wethu. Yaye nangona ngexesha lezinto eziqhenqileyo, kwakungekho nhlobo ngaphezu kobunzima bayo nobukhulu bayo.

I-whale enkulu, ngokuqinisekileyo, iphophelelwe ukuba ibe ngumnini weerekhodi ngenxalenye yezona "zininzi kakhulu". Yaye akazange adideke. Ngoko ke, uludwe lweengxelo ze- blue whale: ulwimi olugqithiseleyo kwihlabathi (ukufikelela kwiitoni ezine), umthamo omkhulu wemiphunga (ngaphezu kwama-elitha amathathu elitha). Kwaye, ngokwemilinganiselo ethile (nangona kunjalo, ngokucacileyo i-overestimated), umthamo wemiphunga ufikelela kumawaka elinesine lama-liters ... Masenze phambili: inani elikhulu legazi-ukuya kwii-elitha ezisibhozo zeelitha, intliziyo enkulu-malunga neetoni kwiimpawu ezinkulu. I-pulse ye-whale kwisimo sokuzola iinqwelo ezintlanu ukuya kwi sixhenxe ngomzuzu, kwaye emva kokuba udilika iyenyuka ifikelele kwishumi elinesibini.

Ngomzuzu i-whale eluhlaza ayithathi ngaphezulu kwemiphefumlo emine. Unobungakanani obukhulu beemithambo yegazi: icandelo le-aorta eguqayo lifikelela kumyinge wamasentimitha angamashumi amane. Yongeza kulo mrhumo omkhulu (i-blubber), ubunzima bebonke obuyingxenye yesine sobunzima bezilwanyana (kunye nakwezinye). Ngokweengxelo zabasebenzi be-whalers, badibana nemikhomo enesisindo esingama-180-190 amathani. Kodwa zikhona ezimbalwa, ezininzi izilwanyana azikhuli zibe zikhulu kangaka. Yaye nangona emva kokufikelela kwirekhodi elincinci elincinci lama-whales (amawaka amahlanu) kwiminyaka engamashumi ama-60 ekhulwini lokugqibela, loo nto, ngenxa yemilinganiselo yokhuseleko, iyavumelana, amandla akhe ngoku malunga namawaka ayi-10, amaninzi amaninzi ngaphantsi kwekhulu elinamashumi amahlanu Buyela. I-whale enkulu ifuna iindawo ezininzi zokukhusela. Kwaye oku akunakunyulwa.

Ngelo xesha, i-whale enkulu ayigqiba ukumangaliswa ngezinye iinkalo zesakhiwo somzimba esilungelelwanga kwi-giant, kodwa kwisilwanyana esiphakathi okanye esincinci. Ngokomzekelo, i-pharynx ye-blue whale ine-ububanzi ... kuphela amasentimitha ayishumi! Ngoko ke, ayikwazi ukugwinya ukutya okukhulu. I-whale enkulu inesidlo esakhiwa ngabemi abancinci be-olwandle, ngokuyinhloko ukusuka kwi-plankton. Xa edlulayo, unako ukugwinya kunye nezinye izinto ezincinci ezenzeke kufuphi. Kwisisu seempuphu eziluhlaza okwesibhakabhaka, i-squid encinci kunye neentlanzi zifunyenwe. Ukuze ukhusele izilwanyana ezinkulu ukungena kwi-pharynx, i-whale igxobhoza amanzi olwandle ngokusebenzisa "i-whalebone" - imiqolo emininzi yamacwecwe e-horny.

Imikhomo ebomvu ivelisa ngokukhawuleza. Ibhinqa lazala inyanga ezilishumi elinanye kwaye izisa enye okanye amabini. Ipesenti yokuzalwa ezimbini - akukho ngaphezu kweyodwa. Ubungakanani bezinyane elizalwayo luseemitha ezilisibhozo ukuya kweesibhozo, kwaye ubunzima bube zibini kwiitoni ezintathu. Ibhinqa londla i-whale ngobisi ukuya kwiinyanga ezisixhenxe, kwaye imihla ngemihla ifumana iitalitha ezingama-90 zondlovu. Olunye irekhodi!

Ukususela ngo-1966, iinqonga ezinkulu ze-blue ziye zavalwa ukuloba kulo lonke ihlabathi. Kodwa imfuyo yabo ikhula ngokukhawuleza. Akunjalo ngokuzingela. Apho impembelelo enkulu ibangelwa ngcoliseko lwendalo. Ukuwela kwimveliso yeoli ye-oyile iqokelele emzimbeni whale yamabhawu eesibhakabhaka, ize idluliselwe kwintsana, echaphazela kakubi impilo yabo. Nangona kukho ukukhula kwinani lala mazilwanyana zaselwandle, ubukho beentlobo zisasongela.