AP Psychology Practice Test

The role of estrogen in nonhuman female mammals is significant, particularly in relation to reproduction and sexual behavior. During the ovulation phase of the menstrual or estrous cycle, estrogen levels in female mammals increase sharply. This peak in estrogen is crucial because it enhances sexual receptivity and increases the likelihood of mating. The elevation in estrogen not only prepares the female's body for potential fertilization but also signals to males that the female is in a fertile state, promoting mating behavior. This understanding of estrogen's role helps clarify the physiological and behavioral changes that occur during the reproductive cycle in females. The increase in estrogen contributes to a range of reproductive behaviors and physiological changes necessary for successful mating and reproduction.