1. giving birth to live young that develop within the mother’s body rather than hatching from eggs
Usage: biology

Examples

• Most mammals are viviparous, including humans, dogs, and whales.
• Unlike most reptiles, some snakes are viviparous and give birth to live babies.
• Sharks can be oviparous, viviparous, or ovoviviparous depending on the species.
• The guppy is a popular viviparous fish in home aquariums.
• Scientists studied the viviparous reproduction of certain lizard species.
• Viviparous animals must provide nutrients to their developing offspring through the placenta or similar structures.