जरायुजता
Also known as viviparous, vivipary, live birth
thumb|An aphid giving viviparous birth, an unusual mode of reproduction among insects In animals, viviparity is the development of the embryo inside the body of the mother, with the maternal circulation providing for the metabolic needs of the embryo's development, until the mother gives birth to a fully or partially developed juvenile that is at least metabolically independent. This is opposed to oviparity, where the embryos develop independently outside the mother in eggs until they are developed enough to break out as hatchlings; and ovoviviparity, where the embryos are developed in eggs th
AI overview
Viviparity is a reproductive strategy where embryos develop inside the mother's body, with the mother's circulation supplying the nutrients and oxygen the embryo needs to grow until birth. This matters because it's fundamentally different from egg-laying reproduction and allows mothers to protect and nurture their developing offspring internally, which is found in mammals, some reptiles, and certain other animals like some insects.
AI-generated from the Wikipedia summary — may contain errors.
Research
2,117 papers- Viviparity and temperature-dependent sex determination.ReviewSexual development : genetics, molecular biology, evolution, endocrinology, embryology, and pathology of sex determination and differentiation · 2010Robert KA, Thompson MBDOI: 10.1159/000260373
- Phylogenetic analysis of viviparity, matrotrophy, and other reproductive patterns in chondrichthyan fishes.ReviewBiological reviews of the Cambridge Philosophical Society · 2024Blackburn DG, Hughes DFDOI: 10.1111/brv.13070
- Evolution of viviparity in mammals: what genomic imprinting tells us about mammalian placental evolution.ReviewReproduction, fertility, and development · 2019Kaneko-Ishino T, Ishino FDOI: 10.1071/RD18127
- Oviparity or viviparity? That is the question….Review