Notes from NEET topper
Vivaparous Animal
Viviparous animals are those that give birth to live young. This is in contrast to oviparous animals, which lay eggs that develop and hatch outside the mother’s body, and ovoviviparous animals, where eggs develop inside the mother’s body but there is no placental connection.
In viviparous animals, the embryo develops inside the mother’s body and is nourished directly by the mother. This typically occurs through a placenta, a specialized organ that allows for the exchange of nutrients, oxygen, and waste products between the mother and her developing offspring.
Viviparity is common in mammals, including humans, where the young are carried in the uterus until they are sufficiently developed to be born. This mode of reproduction provides several advantages, such as protection of the developing young within the mother’s body and ensuring the young are born in a more advanced state of development, which can increase their chances of survival.
Some species of fish, reptiles, and invertebrates are also viviparous, demonstrating that this reproductive strategy has evolved independently in different branches of the animal kingdom.
