Oviparity — A reproductive mode in which the mother lays eggs and the embryo develops within the egg before hatching. An embryo may already be partly developed when the egg is laid, so the term does not imply that all development begins outside the body.
Understanding by example
Leopard gecko and turtle eggs differ among species in shell structure and developmental conditions. Oviparity groups a reproductive mode; it is not an instruction to incubate every reptile egg at the same temperature and moisture level.
Common misconceptions
Clutch size, number of fertile eggs and number of hatchlings are different measures. Egg laying alone does not demonstrate reproductive success. When comparing reports, check whether a figure refers to one clutch or an entire breeding season.
Related reading and sources
For species-specific context, see Leopard Gecko Reproduction and Life History. Browse the full glossary.
Basic reference: OpenStax Biology 2e: Fertilization.