Oviparity

Oviparity is a mode of reproduction in animals in which females lay eggs (ova) that are fertilized or unfertilized, with little or no other embryonic development within the mother. This is the reproductive method of most fish, reptiles, birds, and the monotremes.

Overview

In the animal kingdom, there are several ways that species reproduce. Oviparity is one such method, and it involves the female laying eggs that have been fertilized or unfertilized. The eggs are then left to develop on their own, with little or no further development taking place within the mother.

Characteristics

Oviparous animals are characterized by the fact that they lay eggs, with the embryo developing and maturing outside the mother's body. The eggs of oviparous animals vary greatly in size, shape, and structure, and they are often protected by an outer shell.

Examples

Examples of oviparous animals include most species of fish, reptiles, birds, and the monotremes. In these species, the female lays eggs that are then fertilized by the male. The eggs are then left to develop on their own, often in a nest or other protected environment.

See also

• Ovoviviparity
• Viviparity
• Reproduction
• Egg (biology)

References

Oviparity Resources
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