Everything about Vivipary totally explained
A
viviparous animal is an animal employing
vivipary: the embryo develops inside the body of the mother, as opposed to outside in an
egg (
ovipary). The mother then gives
live birth.
The less developed form of vivipary is called
ovoviviparity, which, for instance, occurs in most
vipers. The more developed form of vivipary is called
placental viviparity; mammals are the best example, but it has also evolved independently in other animals, such as in
scorpions, some
sharks, some
snakes, and in
velvet worms. Viviparous offspring live independently and require an external food supply from birth. Certain lizards also employ this method such as the genera
Tiliqua and
Corucia. The placenta is attached directly to the mother in these lizards which is called viviparous matrotrophy. There are numerous advantages and disadvantages to being viviparous.
Further Information
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