Kaimanfish (Lepisosteus)
El Lizard peje Ihove yakasarudzika, hafu yehove nehafu dzvinyu, nekuda kwe physiognomy yayo. Nhasi inogona kuwanikwa chete kuNorth neCentral America, kuCosta Rica, kumaodzanyemba kweQuebec uye pakati peMontana. Zviri a prehistoric predator izvo zviuru zvemakore zvakapfuura zvakagara muEurope, kumaodzanyemba kweAsia, Africa neSouth America, zvisaririra zvinoburitsa humbowo uhu, makore anopfuura miriyoni zana apfuura.
Kuona hove iyi kwakafanana tarisa mhando imwe chete mamiriyoni makore apfuura, nokuda kwoufakazi hunozvizivisa. Imhuka yemusango, ine muromo muhombe nemuviri wezvombo wakaita sedzvinyu. Ngationei kuti ndeapi mamwe maitiro atinogona kuwana pamhuka huru iyi.
Pejelagarto, prehistoric predator kubva kuAmerica
Iyi mhuka huru inofadza zvinoshamisa kuva nayo munguva dzazvino. Kuramba kwaro kwakanyorwa chete 215 mamirioni emakore. Iine chitarisiko chisina kujairika, nomusoro wehove nomuviri wedzvinyu; izvo zvinorangaridza zvikara zvikuru zvakaita segarwe. Ndeyemhuri yeLepisosteinade, boka rehove dzakaiswa munhoroondo yekushanduka-shanduka nekuva chikamu cheboka rakararama makore anopfuura miriyoni zana, munguva yeCretaceous. Izvi zvinoreva kuti vaigara pamwe chete nemadinosaur, izvo zvino zvinovaita "zvipenyu zvipenyu."
Kurarama kwayo kwemakore akawanda kunoongororwa nahwo kugona kurarama kunyangwe mumvura isingagoneki. Dundira rayo rinokwanisa kuzadza nekumedza mweya, kuitira kuti ripe oxygen kumagill ayo kana iri munzvimbo dzisina oxygen. Physiognomy yayo inomira pachena nekuda kweshaya yayo yakakura yakareba yakazara nemazino akapinza, kuti irarame. Uye kunyange zvazvo zvingaita sezvisina kujairika, kana tikatarisa kuchinja kwemuviri kwemhuka dzakawanda muzera radzo rokushanduka-shanduka, pejelizartos. Vakachengeta maitiro akafanana emuviri kubva prehistory kusvika zvino.
Hunhu hweLizardfish
Ihove holostean, yemhuri Lepisosteidae, inogara mumvura yakachena. Inowanikwa munzizi nemadziva eVeracruz, Belize, El Salvador, Campeche, Nicaragua neCosta Rica, pakati pevamwe. Uyezve, kudzvinyirirwa kwavo kunokanganisawo mamwe marudzi ehove anogovera nzvimbo yadzo.
Muviri wayo wakareba, une tubula, ine mhino huru uye muviri wakafukidzwa ne ganda rizere nemakwande makobvu, senhumbi dzokurwa nadzo. Ruvara rwayo rwakaita greyi-girini, iine mativi machena akafukidzwa nechinhu mucilaginous. Kuti uwane rumwe ruzivo nezve nzvimbo dzemumvura dzavanogara, unogona kubvunza nezvazvo hove dzemvura inotonhora in general
Ane a mhino yakareba kwazvo ine mhino huru kumucheto kwemhino, panzvimbo yekuve iri pasi pamberi pemaziso ayo. Humwe hunhu hwayo hwemuviri ndehwekuti vane vertebrae, chimiro chakafanana nezvinokambaira. Chokwadi ndiyo imwe yehove dzine hunhu uhwu, inobvumirawo kumberi kwayo kuti ive convex uye chikamu chekumashure chive concave.
Muromo wayo wakaumbwa ne mazino akawanda akapinza, kukwanisa kudya hove, shiri uye ma<em>crustaceans madiki. Muviri waro hausviki mita imwe pakureba, asi zvienzaniso zvekusvika pamamita matatu uye uremu hunopfuura 3 kilograms zvakawanikwa. Dzinoshambira zvishoma nezvishoma, asi dzinokurumidza uye dzinokanganisa pakubata mhuka dzadzo.
Kuberekwa kweLizardfish
Iyo Pejelagarto inowanikwa mukati mvura yakachenakunyange zvakadaro inogonawo kuwanikwa mumvura ine brackish uye pamahombekombe akadai seGulf of Mexico. Apo kubereka kwavo kunoitika, kunyanya mumvura yakachena, pakati pemwedzi waApril uye kutanga kwaJune.
Vanoumba Basa reEcological, sezvo vachiita basa rakakosha mukuchengetedza kuenzana kwezvakatipoteredza. Mune dzimwe mvura, alligator gar inodzora huwandu hwemhando dzemhuka dzinogona kupindira uye kukonzera kuwandisa kwevanhu, zvichibatsira kune hutano hwese hweecosystem. Hove idzi dzinodyidzanawo nezvimwe zvikara munzvimbo yadzinogara.
Varume vanogona kubereka mugore rokutanga rehupenyu, vakadzi vanoita saizvozvo uye Vanobereka mugore rechipiri. asi vanokudziridza kugona kwavo kukuru mugore rechitatu. Kusangana kwavo kunoitwa mukati mvura yakadzikama, isina kudzika uye pane uswa hwakakura.
Madzimai anogona kuzvara nekusangana nevarume vakati wandei. Vanonamatira mazai avo pamusoro pemiti, matombo kana matanda akanyura. Vanobva girini uye kunamira zvakanyanya. Mukadzi anogona kubva 8.000 kusvika ku12.000 mazai pakirogiramu yehuremu.
Zai richava lecithotrophic larvae, vanokwanisa kuramba vakanamira pavanenge vakatemerwa ne adhesive iri padumbu rako. Ivo havadye pa plankton yakapararira mumvura, asi pane yavo yolk reserves kusvikira yava fry.
Kuti varambe vari vapenyu kubva kune vanovadya chengetedza caudal fin iyo inoshanda sedziviriro, inorambawo yakavigwa pakati pezvinomera kuti irambe yakavharika. Nokukurumidza ivo vachakura uye kuratidza chimiro chavo, nehunhu hweshaya uye chimiro chemusoro wavo.
Pejelagarto inogona kudyiwa here?
Kune akawanda marudzi e alligator gar, pasina mubvunzo, vazhinji vavo vakadyiwa kwemazana emakore akawanda. Yakadzidzwa zvakanyanya kuti igone kurerwa muutapwa uye kuve nehove iyi iri pedyo kuti idyiwe.
MuUnited States, kuredza kwayo kunoshandiswa sedenho huru, sezvo iri mhuka inokosheswa zvikuru nokuda kwayo Simba guru uye kuoma kwekubata hove. Nyama yaro inodyiwa uye inova chikafu chinonaka kune vakawanda, asi kune vamwe inosvika pakurema nekuda kwehurefu hwayo. zviri muminzwa. Chinogona kutaurwa pasina kupokana ndechekuti mazai haadyiwe nekuti ane muchetura.
Muna 1989, miedzo yekutanga yakaedzwa kuti iitwe kuitira kuti alligator gar akaramba ari muhusungwa Pamapurazi erustic, pfungwa yaive yekuigadzira kuitira kutengeserana. Kuti udzidze zvakawanda nezve hunhu hwavo uye pekugara, unogona kuwana ruzivo nezvavo mudunhu.
Sekurudziro, miedzo yakaitwa yekutapwa kwavo, vachisimudzira kuvharirwa mumakeji anoyangarara munzvimbo yeHurumende yeTabasco. Mumiedzo yavo, vanoedza nenzira yechisikigo kuti alligator gar ibereke, mhute inosimudzwa uye inounzwa kune fry stage. Nekuzadzisa chinangwa ichi, mhuka iyi inogona kukodzwa uye kunyange kutorwa kuti igadzezve nzvimbo dzemvura dzemunharaunda.
Yakanga isiri kutozosvikira 1997 apo zviratidzo zvokutanga zvinooneka zvekukura kwemhuka iyi zvakaitika, ne kugadzirwa kunodzorwa. Asi kuchine miedzo yakawanda inofanira kuitwa uye nzvimbo dzinoverengeka uye kunyange nyika, uko kugadzirwa kukuru kwemarudzi ayo kunopedzisira kwawanikwa, kusvika pakugadzirwa kwevana vanosvika 219.000.