Umxholo
Inkqubo ye- izilwanyana ezinqabileyo zezo zibonakaliswa ngokuphuhlisa umbungu ngaphakathi esibelekweni sikanina. Umz. umvundla, inja, ihashe.
Izinto eziphilayo ezinje ngezi zinobume bokuzala ngendlela yesondo. Oku kuthetha ukuba umntu obhinqileyo uchumiswa yindoda akuba efake amadlozi esibelekweni sakhe, kwaye ngale ndlela oko kubizwa ngokuba yimbungu iqala ukukhula.
Inkqubo ye- viviparous Zahlukile ke kwi-oviparous, ezizilwanyana ezizala zivela eqandeni, ezenziwa kwimeko yangaphandle. Umzekelo wezi zilwanyana ziinkukhu okanye amahobe.
I-Ovoviviparous yahlukile, ngokulandelelana, kuleyo yangaphambili. Ezi zokugqibela zizilwanyana ezinenzala eqanduselwa eqandeni, kodwa eli qanda lihlala ngaphakathi emzimbeni womfazi de imbewu ikhule ngokupheleleyo. Isilwanyana esivelisa ngale ndlela yinyoka, ukongeza kwezinye iintlanzi kunye nezinye izirhubuluzi.
- Bona kwakho: Yintoni izilwanyana ze-oviparous?
Ukukhulelwa kwizilwanyana ezi-viviparous
Inkqubo ye- ixesha lokumitha Inani leentlobo ze-viviparous ziyahluka ngohlobo kwaye oku kuxhomekeke, phakathi kwezinye izinto, kubungakanani besilwanyana. Oko kukuthi, ixesha lendlovu liya kuba lide kakhulu kunelo lempuku, ukuthatha umzekelo omnye.
Omnye umba owahluka ngokwesilwanyana yile inani lenzala ukuba umntu obhinqileyo angamitha ngalo lonke ixesha ekhulelwa. Umzekelo, umvundla unenzala eninzi kunabantu.
Kwiimeko ezininzi, isilwanyana esincinci se-viviparous sikhula kwi-placenta.Kulapho umntwana akwazi khona ukubonelela ngezakha-mzimba kunye neoksijini eziyimfuneko ukuze uhlale uphilile kwaye ukhulise amalungu, kude kube ngumzuzu wokuzalwa.
Ngayiphi na imeko, ngaphakathi kwe-viviparous singachonga iqela elincinci lezilwanyana, ezinje ngeekhangaru okanye iioala, ezibizwa marsupials kwaye zahlukile kwezinye ngokuchanekileyo kuba zingenayo i-placenta. Endaweni yoko, umntwana, owazalwa engakhulanga kakuhle, uphela evumelana nolo hlobo lubizwa ngokuba "yingxowa yemarsupial".
- Ingakukhonza: Izilwanyana ezinomdla
Imizekelo yezilwanyana ezi-viviparous
- Umvundla: Ixesha lakho lokukhulelwa, ngokubanzi, lingaphantsi kweentsuku ezingama-30.
- Indlulamthi: ixesha labo lokumitha lithatha malunga neenyanga ezili-15.
- IndlovuEzi zilwanyana zanyisayo zikhulelwe ezihlala phakathi kweenyanga ezingama-21 ukuya kwezingama-22.
- Ikati: ixesha lokumitha kwezi zilwanyana liphakathi kweentsuku ezingama-60 nama-70, malunga.
- Imouse: isilwanyana esifana nesi asihlali ngaphezulu kweentsuku ezingama-20 esiswini.
- Ilulwane: ixesha lokukhulelwa kwesi silwanyana liphakathi kweenyanga ezi-3 ukuya kwezi-6, kuxhomekeka kumatyala.
- Inja: Iiveki ezili-9 yile nto ukukhulelwa kwezi zilwanyana kuhlala phantse.
- Umnenga: ukukhulelwa kwesilwanyana ngolu hlobo kunokuqhubeka ukuya kunyaka.
- Bhele: Ukukhulelwa kwesi silwanyana sasendle kungathatha iinyanga ezisi-8.
- Inyama yehaguIxesha lokumitha kwesi silwanyana sasefama li malunga neentsuku ezili-110.
- Ihashe: ezi zilwanyana zinokukhulelwa okuhlala malunga neenyanga ezili-11 okanye ezili-12.
- InkomoPhambi kokuba izale, le nto ityiwayo imalunga neentsuku ezingama-280 ikhulelwe.
- Iigusha: igusha kufuneka ibe malunga neenyanga ezintlanu ikhulelwe ngaphambi kokuba izale amathole ayo.
- IKoala: ukukhulelwa ngokwakho kwezi marsupial kuhlala malunga nenyanga. Nangona kufuneka kuthathelwe ingqalelo ukuba inzala ayiphuhliswanga ngokupheleleyo, kodwa iyaqhubeka ukwakheka kwingxowa yemarsupial.
- ItshimpanziEzi zilwanyana zinethuba lokumitha elihlala ixesha elingaphantsi kweenyanga ezili-9.
- Ihlengethwa: ezi zilwanyana zinexesha lokumitha elimalunga neenyanga ezili-11.
- Kangaroo: kolu hlobo lwee-marsupials, ukukhulelwa kuhlala kufutshane neentsuku ezingama-40. Njengakwimeko yekhoala, ukukhula kwabaselula kwenzeka ngaphandle kwesibeleko, kwingxowa yemarsupial.
- Chinchilla: ixesha lokumitha kwezi mpuku limalunga neentsuku ezili-110.
- Idonki: Ukukhulelwa kwezi zilwanyana kuthatha malunga neenyanga ezili-12.
- Imikhombe: ukukhulelwa kwezi zilwanyana yenye yezona zide, kuba kunokuhlala unyaka onesiqingatha.
Amanye amanqaku kwicandelo:
- Imizekelo yezilwanyana eziCarnivous
- Imizekelo yezilwanyana ezityisayo
- Imizekelo yezilwanyana eziVuthayo
- Imizekelo yezilwanyana ezikhanyayo
