Question

why oviporous are more valnerable

Answer 1

bcz they don't provide proper care and safety to their eggs. they have more risk than viviparous from the predators

Answer 2

An oviparous animal is one that produces eggs, and the young hatch after being expelled from the body. While fertilization of the egg can occur internally or externally, oviparous animals always hatch their young outside of their body. Many amphibians, birds, fish and reptiles are oviparous and often make nests to protect their eggs. This can be contrasted to ovoviviparous animals, which hatch eggs inside of their bodies, then expel live young. This can be seen in some sharks, snakes, and other animals.