ovovivipaarid

Ovovivipaarid is a mode of reproduction in animals where the embryo develops inside an egg that remains within the body of the mother until the hatching. This means that fertilization and early embryonic development occur internally, but the eggs are not nourished by the mother through a placenta. Instead, the developing embryos are sustained by the yolk within their own eggs. Once the embryos are fully developed, the eggs hatch inside the mother, and the live young are then born. This process can be seen as a transitional form between oviparity (laying eggs) and viviparity (giving birth to live young with placental nourishment).

Many species exhibit ovovivipaarity, including certain fish, reptiles, and invertebrates. For example, some sharks, like the tiger shark, and some snakes, such as the boa constrictor, are ovoviviparous. In these cases, the female carries the fertilized eggs internally. The eggs develop, and the young hatch from these eggs within the mother's reproductive tract before emerging as live offspring. This strategy offers some advantages, such as protecting the developing eggs from external predators and environmental fluctuations. The exact mechanisms and duration of internal development can vary significantly between different ovoviviparous species.