Nhasi ticha taura nezve idiki diki inozivikanwa uye isingazivikanwe shark marudzi. Kusiyana neshark dzatajaira kuongorora, morphology uye mararamire erudzi urwu zvakasiyana zvachose. Tinotaura nezvazvo nyoka shark. MuchiRungu rinozivikanwa nezita rekuti viper dogfish. Iri zita rinogona kuturikirwa muchiSpanish se quelvacho vibora. Zita rayo resainzi ndiTrigonognathus kabeyai uye rakawanikwa muna1990, zvinoita kuti ive yemhando yazvino uye isingazivikanwe zvipenyu kusvika zvino.
Muchikamu chino tichaenda kutsvaga zvimwe zvakavanzika zvakadzama zveyoka shark.
Mhando huru
Kusvika nhasi, ruzivo rwushoma kwazvo rwuripo nezve iyo nyoka shark. Huwandu hwemienzaniso yakatorwa hausvike makumi mashanu. Iko kubata netsaona kunoitika muchikwama-seine-mhando hove panzvimbo dzakashama munzvimbo dzakasiyana dzePacific. Kunyanya, iwo mahombekombe eJapan neHawaii ndiyo chete nzvimbo dzepasi pano apo nyoka shark yatorwa.
Ndezvemhuri Etmopteridae (odara squaliformes). Mhuri iyi inozivikanwa kuva nemwenje shark nekuda kwekuvapo kwemapopophores pamusoro pemuviri. Naizvozvi kana zvinogona kutariswa kuti vanogara munzvimbo dzakadzika apo zuva harikwani uye ivo vanoda mwenje kubva kumafotoophores aya. Ivo vane mutorwa anotaridzika, akakwana kuve protagonist yerudzi rwemakomiki.
Iine muviri wakareba, cylindrical uye ine zvimbi zvidiki. Iyo ine mbiri inopenya yemapapiro uye isina anal fin. Ganda rayo rakasviba pamusoro uye dema parizvino riine mavara matema pane peduncle nemuswe wemuswe.
Icho chiri muchikamu chemusoro panowanikwa akasiyana maficha eiyi mhuka. Tinotanga nemuromo murefu uye mutetetete munzvimbo yekumira sekunge inyoka. Muromo une mazino marefu, akakombama kunge mazino. Mazino haatsanangure arch semamwe marudzi, asi akaita seV. Viper shark yakapukunyuka nekuburitsa shaya yayo kuti ibate mhuka yayo. Kutenda nekukwanisa kurebesa shaya uye kureba kwemazino, inogona kudyiswa de peces mapfupa uye crustaceans izvo zvinomedza zvachose. Zvinozivikanwa kuti mazino anongoshandiswa kuroverera uye kubata mhuka.
Range uye pekugara yenyoka shark
Kunyangwe isiri yakawanda data inowanikwa pane iyi mhuka, chii chingave chakavakirwa pane izvo zvinotibata zvinotibvumidza isu kuziva kugara. Isu tinoziva kuti inogara mumvura yakadzika padyo padenga repamusoro pakati pemamita 330-360 pakadzika. 39 mienzaniso yakatorwa mumahombekombe kubva pamwero wegungwa kusvika pamamita 170 pakadzika. Mimwe mienzaniso yakatorwawo pakadzika kwemamita 1500. Izvi zvinogona kuratidza kuti inoita dzakasiyana-siyana kusimuka kwekufamba kwemanheru kuitira kubata chayabata.
Nekuda kwekudzika kwechikafu kana kushomeka, nekudaro, ivo vanofanirwa kukwira kumusoro kuti vawane chavanobata. Izvi kana, zvakadaro, hazvisi chinhu kunze kwekufungidzira. Maitiro ehupenyu hwenyoka shark haanyatso kuzivikanwa.
Nezve iyo biology, zvakati omei kusimbisa zvinhu sezvo iro ruzivo rwurinarwo nezvazvo zvishoma.
Viper shark kubereka
Kunyangwe isingazivikanwe kwazvo, inofungidzirwa kunge iri aplacental viviparous mhuka. Vanhurume vanotanga kukura kana vari pakati pemakumi matatu nematanhatu nemasendimita makumi mana pakureba, nepo vanhukadzi vakakomberedza masendimita makumi mana nemana. Zvirinani ivo vanokwanisa kusvika kureba kwema 54 masentimita. Sezvo vabati vehove netsaona vachibata mimwe mienzaniso, rumwe ruzivo ruchawanikwa kune vesaenzi nezve kwavo kukura, mararamiro, bhayoloji, nezvimwe.
Chinhu chega chatinogona kutaura nechivimbo chizere ndechekuti mukudzika kwegungwa zvisikwa zvipenyu zvakakura kwazvo. Dambudziko riripo mukugona kudzidza uye kuziva nzvimbo uko kunopindwa nezuva zvishoma. Kune mwana munhu zvakaoma kuongorora zvakadzama zvakanyanya, nekuti kumanikidza kuri kukuru uye nzira dzinonyanya kuomarara. Izvo zvinokwanisika kuti kune akasiyana marudzi ehiper shark sezvo mamwe maeximen akatorwa muHawaii anoratidza mamwe morphometric misiyano zvine chekuita nemhando dzakatorwa muJapan.
Mimwe mienzaniso yakatorwa muTaiwan iyo yakatora kusvika maawa makumi maviri nemana mushure mekusiya mvura. Zvakaoma chero chidzidzo chingafambiswe chinoburitsa ruzivo rwezvakanangana nezve biology yeiyi shark. Zita rayo rinokonzerwa nekufanana kwaro kukuru nenyoka. Zvinoita sekunge yaive nyoka yegungwa asi ine hunhu hwe shark.
Sezvauri kuona, kudzika kwegungwa hakuregi kutishamisa. Ndinovimba kuti neruzivo urwu unogona kudzidza zvakawanda nezvenyoka shark.