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| Mammals |
Menstruation is a cycle that happens every month in women before menopause. But other than humans, it turns out there are other female mammals menstruate well.
Basically, only humans and great apes (gorillas, orangutans, chimpanzees and bonobos) that really shows the menstruation cycle. But really other mammals menstruate. But, menstruation is not in other mammals such as menstruation in humans.
Reporting from MadSci, some species are menstruating like monkeys, lemurs, horses, buffalo, giraffe, zebra, rhinos, cats, dogs, rats trees, elephants, hedgehogs and foxes.
In humans, the crumble process of uterine wall due to the absence of fertilization is characterized by bleeding that typically lasts 3 to 7 days. Average during the human menstrual blood loss of 10-80 ml.
In humans, the menstrual cycle occurs on average about 28 days, although it is generally accepted, but not all women have the same menstrual cycle, sometimes cycles occur every 21 days to 30 days. While the great apes quite irregular menstrual cycles. Menstrual cycle length varies, an average of 29 days on and 37 days in orangutans chimpanzees.
Unlike humans and great apes, other mammals menstruation process can be said to 'secretly', because the process of decay the uterine lining (endometrium), which is characterized by bleeding it is not externally visible or invisible.
When fertilization does not occur, the uterus will absorb the uterine wall so no bleeding. There are some memalia the bleeding, but the bleeding is quite mild and very short, so a lot of people who do not know. Other mammals do not menstruate regularly every month, but only a few times a year.
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