Namuhla sizokhuluma ngezinhlobo zoshaka ezingaziwa kakhulu nezingajwayelekile. Ngokungafani noshaka esikujwayele ukukuhlaziya, i-morphology nendlela yokuphila yalolu hlobo ihluke ngokuphelele. Sikhuluma ngakho inyoka kashaka. EsiNgisini yaziwa ngegama le-viper dogfish. Leli gama lingahunyushwa ngeSpanishi njenge-quelvacho vibora. Igama layo lesayensi yiTrigonognathus kabeyai futhi yatholwa ngonyaka we-1990, okwenza kube ngesinye sezinhlobo zesimanje kakhulu futhi ezingaziwa kuze kube manje.
Kulesi sihloko sizothola ezinye zezimfihlo ezijule kakhulu zikashaka wenyoka.
Izici eziyinhloko
Kuze kube namuhla, imininingwane encane kakhulu iyatholakala mayelana ne-viper shark. Inani lama-specimens athathiwe alifinyeleli kumashumi amahlanu. Kungukuthwebula ngengozi okwenzeka ezindaweni zokudoba esikhwameni semikhumbi ezindaweni ezingaphansi ezivulekile ezingxenyeni ezihlukene zePacific. Ngokuqondile, ogwini lwaseJapan naseHawaii yizona zindawo kuphela emhlabeni lapho kuthathwe khona ushaka wenyoka.
Kungokomndeni we-Etmopteridae (oda i-squaliformes). Lo mndeni waziwa ngokuba noshaka we-lantern ngenxa yokuba khona kwama-photophores ebusweni bomzimba. Ngalokhu noma kungabonakala ukuthi bahlala ezinzulwini lapho ukukhanya kwelanga kunganele futhi badinga ukukhanyiselwa kusuka kulezi zithombe. Banokubukeka okungajwayelekile, okuphelele ukuba yi-protagonist yohlobo lwamahlaya.
Inomzimba ohlangene, oyindilinga futhi unamaphiko amancane. Inamaphiko amabili omgogodla wokuphotha futhi ayinayo i-anal fin. Isikhumba sayo simnyama nsundu ngenhla futhi simnyama okwamanje esinamabala amnyama akhanyayo ku-peduncle nasemsileni.
Kusengxenyeni yekhanda lapho kutholakala khona izici ezihlukile zalesi silwane. Siqala ngomlomo omude kakhulu futhi omncane endaweni ebulalayo njengokungathi yinyoka. Umlomo unamazinyo amade agobile njengamazinyo. Amazinyo awachazi i-arch njengakwezinye izinhlobo zezinto eziphilayo, kepha amise okwe-V. I-viper shark yaphunyuka ngokuveza imihlathi yayo ukuze ibambe inyamazane yayo. Ngenxa yekhono lokwelula umhlathi nobude bamazinyo, ingaphakelwa de peces amathambo nama-crustaceans eliwagwinya aphelele. Kuyaziwa ukuthi amazinyo asetshenziswa kuphela ukubethelwa nokubamba inyamazane.
Ububanzi nendawo okuhlala kuyo i-viper shark
Noma ingekho imininingwane eminingi ngalezi zinhlobo, okungasuselwa ekubambeni kusivumela ukuba sazi indawo yokuhlala. Siyazi ukuthi ihlala emanzini ajulile eduze kwethambeka eliphezulu eliphakathi kwamamitha angama-330-360 ukujula. Izibonelo ezingama-39 zithunjiwe eceleni kolwandle kusuka olwandle kuya kumamitha ayi-170 ukujula. Amanye ama-specimens nawo athathwe ngamamitha ayi-1500 ukujula. Lokhu kungakhombisa ukuthi yenza ukufuduka okuhlukahlukene mpo ebusuku ukuze ibambe isisulu sayo.
Ngenxa yokujula kokudla noma ukusweleka, ngakho-ke, kumele bakhuphukele phezulu ukuthola inyamazane yabo. Lokhu noma, nokho, akukho lutho ngaphandle kokuqagela. Indlela yokuphila kophaka wenyoka ayaziwa kahle.
Ngokuphathelene nebhayoloji yayo, kunzima kakhulu ukuqinisa izinto ngoba ulwazi olutholakala ngalo lincane.
Ukuzaliswa kwe-Viper shark
Yize kungaziwa kahle, kucatshangwa ukuthi yisilwane se-aplacental viviparous. Abesilisa baqala ukuvuthwa lapho baphakathi kwamasentimitha angama-37 kuya kwangama-44 ubude, kanti abesifazane bangamasentimitha angama-44. Okungenani bangafinyelela kubude obungamasentimitha angama-54. Njengoba ezokudoba ngengozi zibamba izibonelo eziningi, imininingwane eminingi izotholakala kososayensi ngokukhula kwabo, indlela yabo yokuphila, ibhayoloji, njll.
Ukuphela kwento esingayisho ngokuqiniseka okuphelele ukuthi ekujuleni kolwandle izinhlobonhlobo zezinto eziphilayo zikhulu kakhulu. Inkinga ilele ekutheni ukwazi ukutadisha nokwazi izindawo lapho ukukhanya kwelanga kungafinyeleli khona. Kumuntu kunzima ukuphenya ngokujulile kukhulu kakhulu, ngoba ingcindezi inkulu futhi izindlela ziyinkimbinkimbi. Kungenzeka ukuthi kunezinhlobo ezahlukahlukene zenyoka kashaka ngoba ezinye izibonelo ezithwetshulwe eHawaii zibonisa umehluko othile we-morphometric maqondana nezibonelo ezithwetshelwe eJapan.
Ezinye izibonelo zathunjwa eTaiwan okwadlula amahora angama-24 ngemuva kokushiya amanzi. Akunakusetshenziswa noma yiluphi ucwaningo olwembula imininingwane enemibandela mayelana nebhayoloji yalo shaka. Igama layo kungenxa yokufana kwayo okukhulu nenyoka. Sengathi yinyoka yasolwandle kodwa enezici zikashaka.
Njengoba ukwazi ukubona, ukujula kolwandle akupheli ukusimangaza. Ngiyethemba ukuthi ngalolu lwazi ungafunda kabanzi nge-viper shark.