Megan Stoddard About Me Page at Helium

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About me - Megan Stoddard

About me

Megan Stoddard has moved on from Helium and is now working on other writing projects. Her articles on a wide variety of subjects are still available at Helium.

Featured article by Megan Stoddard

Health & Fitness > Menstruation & Menopause Difference between menstrual and estrous cycles: 1 of 1

All female mammals experience fertility cycles. In humans and most great apes, these cycles occur monthly. Many other mammals have annual or biannual cycles, becoming fertile only once or twice a year. Some go through fertility cycles every few months, or have their cycles triggered by the presence of a fertile male. In humans, the fertility cycle is called a menstrual cycle. In most other mammals, it is called an estrous cycle. In great apes, it may be identified either way. The difference is how the cycles are counted and, to some extent, exactly what occurs. An estrous cycle is the peri...
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