Why are the female reproductive organs on inside?

There are a few reasons why the female reproductive organs are located on the inside of the body.

* Protection. The female reproductive organs are located in the abdomen, which is a relatively safe place for them. They are protected from external injury and infection by the bones of the pelvis and the muscles of the abdomen.

* Temperature regulation. The internal environment of the body is relatively stable, which is important for the proper functioning of the female reproductive organs. The ovaries, which produce eggs, are particularly sensitive to temperature changes. If the ovaries were located on the outside of the body, they would be more likely to be exposed to extreme temperatures, which could damage the eggs.

* Secretion of hormones. The female reproductive organs secrete a number of hormones, including estrogen and progesterone. These hormones are responsible for regulating the menstrual cycle and preparing the body for pregnancy. If the female reproductive organs were located on the outside of the body, the hormones they secrete would not be able to reach their target organs as easily.

* Childbirth. The internal location of the female reproductive organs allows for a more gradual and controlled birth process. If the baby was born through an opening on the outside of the body, it would be more likely to be injured.

In addition to these reasons, there is also some evidence that the internal location of the female reproductive organs may have evolved as a result of sexual selection. Men may find women who have concealed reproductive organs more attractive because they are less likely to be sexually promiscuous.