Imizekelo eli-10 yezilwanyana ze-Ovoviviparous - I-Encyclopedia

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Imizekelo yezilwanyana ze-ovoviviparous

Inkqubo ye- izilwanyana ze-ovoviviparous zezo zikhula ngaphakathi kweqanda ngaphambi kokuzalwa. Kodwa okwahlula i-ovoviviparous kukuba iqanda lihlala ngaphakathi kunina de umbungu ukhule ngokupheleleyo. Yiyo le nto isilwanyana siphuma eqandeni kwangoko emva kokuba iqanda libekwe. Inokude iqandusele eqandeni elisemzimbeni kamama ize emva koko izale.

Kubalulekile ukwahlula phakathi kwe-ovoviviparous izilwanyana kwezinye izilwanyana eziphuhlisa iimbumba zazo phakathi kwamaqanda, i oviparous. La maqanda agcina amaqanda awo kwimeko engaphandle kwasekuqaleni ekuqaleni kokukhula kombungu. Ngamanye amagama, iimbumba zikhula ngaphandle komzimba kanina.

Kuya kufuneka bohlulwe kwi izilwanyana ezinqabileyo, Ezizinto ezo zikhula umbungu ngaphakathi komzimba kamama, njengezilwanyana ezanyisayo. Nangona i-viviparous ikwakhula umbungu ngaphakathi, umahluko kukuba ekubeni ugqunywe yigobolondo, ayinakondliwa ngokuthe ngqo ngunina.

Koko kukuthi:

Inqaku eliqhelekileyo phakathi kwe-ovoviviparous kunye ne-oviparous: Umbungu ukhuselwe yigobolondo.
Inqaku eliqhelekileyo phakathi kwe-ovoviviparous kunye ne-viviparous: Ukuchumisa kwenzeka ngaphakathi emzimbeni kamama, apho umbungu ukhula khona.

Imizekelo yezilwanyana ze-ovoviviparous

Ukrebe omhlopheUhlobo lookrebe abakhulu nabomeleleyo. Inomlomo oguqulweyo. Kufuneka idade rhoqo (ayinakuhlala ithe cwaka) ukuze iphefumle kwaye idade, kuba ayinaso isinyi. Iimbumba zondla nge-yolk. Le krebe ayizaleli maqanda kodwa amantshontsho aqandusele ngaphakathi kunina kwaye emva koko azalwe ekhulile.
I-Boa constrictor: Isirhubuluzi enokulinganisa phakathi kwe-0.5 kunye ne-4 yeemitha, kuxhomekeke kwimixhaphaza. Ukongeza, iimazi zinkulu kunamadoda. Inombala obomvu nomhlophe, okanye obomvu nomdaka, ngokwahluka ngokuxhomekeka kwii-subspecies. Iyakhwelana ngexesha lemvula. Ukumitha kwayo kuthatha iinyanga ezininzi. Ukuqanduselwa kwamaqanda kwenzeka ngaphakathi emzimbeni womama, kuqandusela inzala esele ikhulile.
Umbethe wobusiUhlobo lookrebe abancinci, elifikelela ngaphezulu nje kwemitha ubude. Ibonakaliswa ngokuba neentsiba ezinobuthi ebusweni bomzimba. Yeyona ntlobo yookrebe ininzi kodwa inesithintelo ekuhanjisweni kwayo. Inkunkuma yokuzala ixhomekeke kubungakanani babasetyhini, kuba eqhelekileyo sisi-1 ukuya kuma-20 iimbumba ngexesha lokukhulelwa, kodwa iimazi ezinkulu zinokuba nenkunkuma eninzi. Bazalwa ngaphandle kweqanda.
IStingray (ingubo enkulu): Yahlukile kwezinye iindidi kuba ayinaso isitovu esinetyhefu emsileni. Kwakhona ngenxa yobukhulu bayo obukhulu. Uhlala kwiilwandle ezipholileyo. Iyakwazi ukutsiba emanzini. Ngexesha lokuzala, uninzi lwamadoda lwenkundla yamabhinqa. Ukuze omnye wabo afumane ukuxubana, kufuneka abulale abo bakhuphisana nabo. Kuqikelelwa ukuba ixesha amaqanda ahlala ngalo ngaphakathi emfazini lingangaphezulu kweenyanga ezilishumi elinambini. Banomntwana omnye okanye ababini kwilitha nganye.
AnacondaUhlobo lohlobo lwenyoka ebambekayo. Inokulinganisa ukuya kuthi ga kwiimitha ezilishumi ubude. Nangona ingahlali kwiqela kodwa ngendlela eyedwa, xa imazi ifuna ukuzala inokutsala inkunzi ngokukhupha iipheromones. Kwinkunkuma nganye phakathi kwama-20 nama-40 amancinci azalwa, malunga nama-60 cm ubude.
Iqonga leSuriname: Amphibian ehlala kwimimandla yetropiki neetropikhi. Iphawuleka ngomzimba wayo ocabalele kunye nentloko ethe tyaba, engunxantathu. Umbala wayo ungwevu kancinci oluhlaza. Luhlobo olukhethekileyo lwesilwanyana se-ovoviviparous, kuba ukuchumisa kwenzeka ngaphandle komzimba kamama. Nje ukuba achumise, umntu obhinqileyo uyawafaka kwakhona amaqanda emzimbeni wakhe. Ngokungafaniyo nezinye izilwanyana eziphila emanzini nasemanzini, ezizalwa njengezibungu kwaye emva koko zenzelwa utshintsho, le toad iqhuba ukukhula kwayo njengombungu ngaphakathi kweqanda, kwaye abantu abazelwe sele benobume bokugqibela.
Iplatypus: Ithathelwa ingqalelo njengesilwanyana esincancisayo, kodwa ibeka amaqanda, ke ngoko inokuhlelwa njenge-ovoviviparous. Sisilwanyana esisemanzini esihlala kwimpuma ye-Australia nase-Tasmania. Iphawuleka ngenkangeleko yayo ethile, kunye nomphunga ofana nomlomo wedada, umsila ofana ne-beaver, kunye nemilenze efana ne-otter. Inetyhefu.
UJackson Trioceros: Iintlobo ze-ovoviviparous chameleon. Ineempondo ezintathu, yiyo loo nto ibizwa ngokuba yi "trioceros". Uhlala eMpuma Afrika. Abancinci bazalwa kwiinkunkuma eziphakathi kweekopi ezisibhozo ukuya kwezingama-30, ezimithi ukuya kuthi ga kwiinyanga ezintandathu.
IHippocampus (seahorse): Luhlobo oluthile lwe-ovoviviparous, kuba amaqanda akakhuli ngaphakathi komzimba wabasetyhini kodwa emzimbeni wendoda. Ukuchumisa kwenzeka ngelixa umntu obhinqileyo edlulisa amaqanda kwisaka lendoda. Ingxowa iyafana naleyo yee-marsupials, oko kukuthi, ingaphandle kunye ne-ventral.
Isilumkiso (ICrystal shingles): Isilwanyana esithile, kuba sisicikilishe esingenamlenze. Oko kukuthi ukubonakala kufana nenyoka. Nangona kunjalo, kuyaziwa ukuba licikilishe kuba kukho imizila yamathambo alo emzimbeni aneempawu zamacikilishe. Kwakhona, ineenkophe ezihambisekayo, ngokungafaniyo neenyoka. Sisirhubuluzi esihlala eYurophu kwaye sinokufikelela kuma-40 cm, okanye kuma-50 cm kubantu basetyhini. Ukuzaliswa kwakhona kwenzeka entwasahlobo. Emva kweenyanga ezi-3 okanye ezi-5 zokumitha, imazi izalela amaqanda kunye namancinci ngaphakathi, kwaye ukuqandusela kwenzeka kwangoko.