ViviparousOviparousAnimals reproduce in two ways.

viviparousViviparous animals are born live. Mammals are viviparous, which means they have live babies.

oviparousOviparous animals lay eggs. Birds, fish, reptiles and amphibians are oviparous. Invertebrates are oviparous, too.

incubate_hatchSome oviparous animals incubate and hatch their eggs to keep them warm while the baby grows inside.

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