Difference between Oviparous and Viviparous animals

Oviparous animals are animals that lay eggs, with little or no other embryonic development within the mother.
birds
Example of Oviparous animals:  This is the reproductive method of most fish, amphibians, reptiles, all birds, the monotremes, and most insects, some molluscs and arachnids.
Viviparous animals are those that give birth to live young.
whales
Examples of viviparous: Marine mammals such as whales and dolphins, pinnipeds, sirenians and sea otters. Viviparous plants (Mangroves)
Oviparous animals  vs Viviparous animals
  • Oviparous animals lay fertilised or unfertilized eggs.
  • The fertilized eggs remain covered by hard calcareous shell and laid in safe place in the environment. After a period of incubation young ones hatch out.
  • Chances of survival of young ones is less as the female lay egg in the open environment.
Viviparous animals
  • Viviparous animals birth to young ones.
  • The fertilised egg (zygote) develop into a young one inside the body of the female organism.
  • Chances of survival of young one is more  because of proper embryonic care and protection inside the mother’s body.
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6 comments:

Anonymous said...

which is the animal that is viviparous as well as oviparous??

Anonymous said...

Platipus is viviparous but it lays eggs

Mehak said...

Well collected info! Great!!

Unknown said...

Hen is a oviparous

Robert F. Crocker said...

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Unknown said...

Arthropods are oviparous as well as viviparous

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