Ovoviviparity

Ovoviviparity is a mode of reproduction in animals in which embryos develop inside eggs that are retained within the mother's body until they are ready to hatch. This method of reproduction is found in many species, including some fish, reptiles, and invertebrates.

Overview

In ovoviviparous animals, the egg is fertilized within the female, and the embryo develops within the egg. The egg provides all the nutrients required for the embryo's development. Unlike in viviparous species, there is no placental connection between the mother and the developing embryo. The mother's body provides only physical protection to the developing eggs until they are ready to hatch.

Examples

Some examples of ovoviviparous animals include certain species of sharks, snakes, and scorpions. In these species, the eggs are retained within the mother's body until they are ready to hatch. The young are then born live, but are not connected to the mother by a placenta as in viviparous species.

Advantages and Disadvantages

The main advantage of ovoviviparity is that it provides protection to the developing embryos, reducing the risk of predation and environmental hazards. However, it also places a greater metabolic demand on the mother, as she must carry the developing eggs within her body.

See Also

• Viviparity
• Oviparity
• Reproduction

References

Ovoviviparity Resources
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