Oviparous (ova – egg)
Viviparous (vivus – alive)
Egg laying animals
Live-bearing animals
Oviparous animals lays egg
Viviparous animals give birth to young ones
Development of embryo takes outside the mother’s body inside the egg
Whole embryo development takes place inside mother’s body
Examples: birds, snake and lizards
Examples: all mammals except duck-billed platypus
