ovoviviparity
Quick Summary
Ovoviviparity is a mode of reproduction where fertilized eggs are retained within the mother's body until they hatch, after which the young are born alive. Unlike viviparity, where the embryo receives nourishment directly from the mother, in ovoviviparity, the developing embryo relies on the yolk within the egg for sustenance. The mother provides physical protection for the eggs until hatching. This reproductive strategy is observed in certain species of snakes and other animals. It represents an intermediate condition between oviparity (laying undeveloped eggs) and viviparity (giving birth to live young with maternal nourishment).123
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- reproductive behaviourFishes
…may be oviparous (lay eggs), ovoviparous (retain the eggs in the body until they hatch), or viviparous (have a direct tissue connection with the developing embryos and give birth to live young). All cartilaginous fishes—the elasmobranches (e.g., sharks, rays, and skates)—employ internal fertilization and usually lay large, heavy-shelled eggs or…
Read More…may be oviparous (lay eggs), ovoviparous (retain the eggs in the body until they hatch), or viviparous (have a direct tissue connection with the developing embryos and give birth to live young). All cartilaginous fishes—the elasmobranches (e.g., sharks, rays, and skates)—employ internal fertilization and usually lay large, heavy-shelled eggs or…
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gastropodReproduction and life cycles…drying is the adoption of ovoviviparity, or the hatching of eggs within the parent’s body.
Read More…drying is the adoption of ovoviviparity, or the hatching of eggs within the parent’s body.
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chondrichthyanReproduction and development…other than the skates are ovoviviparous (that is, the egg hatches within the mother). In this case, the egg is first coated in the shell gland with a temporary membranous capsule that lasts only during early development. After emerging from its capsule, the embryo remains in the oviduct of the…
Read More…other than the skates are ovoviviparous (that is, the egg hatches within the mother). In this case, the egg is first coated in the shell gland with a temporary membranous capsule that lasts only during early development. After emerging from its capsule, the embryo remains in the oviduct of the…
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