What is the principal difference between menstrual and estrous cycles?

Question

Quizplus · Accepted Answer

The principal difference between menstrual and estrous cycles is that the estrous cycle lacks menstruation. Menstruation occurs in the endometrium of the uterus in response to the drop in hormone levels if the female does not become pregnant during the menstrual cycle. In contrast, the estrous cycle is the reproductive cycle of most mammals, during which females become sexually receptive and ovulate, but they do not menstruate. Instead, the endometrium is reabsorbed if fertilization does not occur.

What Is the Principal Difference Between Menstrual and Estrous Cycles