Giant Imvume yesabelo sogu: i-whale shark

Umkhoma ushaka - ulwandle giant wangempela, okuyinto plies amaza ezilwandle ezifudumele nasemanzini izilwandle like umkhumbi bukhoma. Sikhula kuze kube amamitha ayishumi nanhlanu ubude futhi kuze kube isisindo umxhwele 30 wamathani. Kodwa lezi zidalwa akazange ayithethelele igama abesabekayo "ushaka" ngoba zidla kuphela plankton, kanye nesimo inert nabangenacala ngokuphelele.

oshaka Umkhomo zisekhona kancane zinhlobo ifundelwe, yize indawo engaphesheya uma yokusabalalisa ube ububanzi kakhulu: lapho betholakala khona kuzo zonke izilwandle esipholile efudumele ezishisayo izilwandle, ngaphandle kahle noLwandle LwaseMedithera. Okunengi ulwazi mayelana indlela yokuphila ngisho ubukhulu lezi zidlakela nabanomusa isekelwe kuphela izindaba nasekuqageleni, hhayi kuqinisekiswa amaqiniso.

Kuyaziwa ukuthi ngokwesilinganiso whale shark ifinyelela amamitha angu-12 ubude, futhi abesifazane nge ezinkulu ukudlula wesilisa. Emini besesha ukudla, njengoba ephakama ebusweni kwelanga-sekuqala ukufudumala emanzini, futhi ebusuku waphinda wehlele aze aphakame cishe 700 metres ukujula. Labo shaka bebhukuda kancane ngokwanele, isivinini sabo isilinganiso 1 km / h. Isizathu siwukuthi umzabalazo bengasebenzisi nomsila ofana izinhlanzi eziningi, futhi amagagasi ukuhambisa ingxenye ezingemuva umzimba kusuka nangapha.

Uma kunesidingo, i-whale shark ingaba ukwenza intuthuko enkulu futhi ukuthuthukisa isivinini afinyelela ku-4 km / h. Kodwa lokhu kwenzeka kakhulu kuyaqabukela, ngoba ushaka asikho isidingo ukuxosha kuyo isilwane abasifunayo. Ukudla ngokwawo ngokoqobo sintanta emlonyeni wakhe.

Umkhomo ushaka ososayensi ubheke izinhlanzi ezifudukayo, kodwa ubufakazi oqondile leli qiniso okwamanje. ukunyakaza yabo olude lingaphathelaniswa ne search for indawo okunomsoco ngaphezulu. Njengoba wazi, ngo-March nango-April wonyaka ngamunye oshaka ubuthe endaweni eshalofini yezwekazi off the entshonalanga nasenkabeni Australia emikhawulweni. Iningi lazo waphawula eduze Ningaloo Reef.

oshaka Umkhomo ngokuvamile banamathelane ngemihlambi elincane abantu abafinyelela kwabayishumi. Ngaphansi ngokuvamile, ungathola oshaka lokuhlala olulodwa noma enkulu lezo zinhlanzi. Ubuningi esiphezulu kwaphawuleka ngasogwini Yucatán ngo-2009, lapho izingqapheli abalwa engaphezu kwamakhulu amane ala imidondoshiya.

Umkhomo ucobekile kakhulu futhi kancane ngokuziqhathanisa namanye amalungu ushaka. Lokhu ngokuvamile sisetshenziswa abatshuzi podplyvaya ukuvala oshaka ngisho ukugibela phezu kwabo ngenkathi ushayela.

ukubukeka

I-whale shark has a ikhanda esiyisicaba nge elikhulu umlomo esiphambanweni. Uneziqu gill izimbotshana ezinkulu kakhulu. On the emuva kalula ebonakalayo isici iphethini - izindawo elikhanyayo nemidwa wahlela iphethini checkerboard on amnyama kungemuva eliluhlaza okwesibhakabhaka noma mpunga. esiswini sakhe emhlophe. Kanye umzimba ziboya longitudinal ebonakalayo. Kungenzeka ukudlala indima nokudidiyela ukunyakaza , neyezinhlanzi.

Ngo imihlathi oshaka ziningi kakhulu amazinyo ezincane - kuze kufinyelele ayizinkulungwane 15. Kodwa ukudla abazi ukudlala noma yimuphi indima.

Ososayensi bakholelwa ukuthi i-whale shark iphila iminyaka engaba ngu-60.

ukudla

Ekudleni eziyisisekelo - plankton, nekton, ezinamagobolondo, inhlanzi encane esikoleni, okungenani - squid futhi tuna. I-whale shark ifuna emakamu enkulu ukudla esebenzisa nephunga. Yena ongaboni kahle emehlweni, emakhaleni, ngakho esikhundleni emehlweni akhe.

oshaka Umkhomo ngenkuthalo ncela amanzi njenge-vacuum cleaner, kwadlula ngokusebenzisa lemifanekiso - gills zabo. Ngakho ukudla ingena emlonyeni wabo. Kungakapheli ushaka ihora "iphampa" ngokusebenzisa uqobo cishe izinkulungwane 60 amalitha amanzi.

Ngezikhathi, ushaka basking "ukhwehlela", ukusula gills zabo futhi ewakhulula ukunamathela izinsalela of plankton.

kabusha oshaka

Le nqubo ibizwa kancane kakhulu Nokho observation eyaziwa, futhi sekuqhubeke iminyaka engaphezu kweyikhulu. Manje sibizwa ngokuthi le nhlanzi ovoviviparous. Imibungu capsule evuthiwe amaqanda ukuthi amabhu zisesesibelethweni. Ewusana olusanda kuzalwa akulyata isihlobo encane kakhulu ubukhulu umzimba omdala -. Obuphelele yabo imayelana 50 cm Lokhu oshaka ezincane inothile yasekhaya izakhi ukuthi ubavumele ukuya ngaphandle ukudla amasonto angaphezu kwamabili.