List of animals that menstruate

Some do apes old world monkeys elephant shrews above many bats and a single rodent. Humans apes monkeys bats and elephant shrews. Most female mammals have an estrous cycle yet only ten primate species four bats species the elephant shrew and one known species of spiny mouse have a menstrual cycle. Great apes like humans and chimpanzees lesser apes like siamang and lar gibbon and other mammals like bats. Understanding menstruation as the discharge through the vagina of blood secretions and tissue debris derived from the involution of the endometrium at the end of an infertile reproductive cycle there there is well documented evidence that the catarrhines humans apes and old world monkeys menstruate and that the strepsirrhines e g. Another maya word for menstruation u also referred to the moon and a month in the lunar calendar. One word for menstruation yilic derived from the word ilah or ilmah translated as both to menstruate and to see menstruation was seen as a form of sight emanating not from the eyes but from the womb and the blood. This means the endometrial lining is so thin. The biological significance of the process in humans can best be explained by reference to the reproductive function in other mammals. Skip to content menu. What do these seemingly disparate animals have in common. It seems the list of animals that menstruate is quite short. Many others have menstrual cycles but reabsorb the old womb lining rather than bleed it out. Most female mammals have an estrous cycle yet only ten primate species four bats species the elephant shrew and one known species of spiny mouse have a menstrual cycle. As these groups are not closely related it is likely that four distinct evolutionary events have caused menstruation to arise.

The animals that have periods include. Menstruation is the shedding of the endometrial lining through the vagina dogs reabsorb the endometrium they do not shed it through the vagina. Animals with an estrous cycle do not menstruate only animals with a menstrual cycle menstruate humans and some primates plus some others. Posted by biscotti at 5 09 am on july 2 2008. Humans primates and some other mammals bats african elephant shrews and certain tree shrews have such a thick endometrial lining that part of it is being shed through the vagina.

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