GlossaryLive Birth
Instead of laying an egg with a baby animal inside, some animals allow the baby to develop inside the mother. When we say a mother is "pregnant," we mean that she has a developing baby in her womb. Instead of an egg hatching, the mother gives live birth to the baby once it has developed.
Humans and all mammals give live birth instead of laying eggs. Birds, dinosaurs, lizards, and fish lay eggs instead of giving live birth.
A pregnant mother who will eventually give live birth.