Let's explore the difference between estrous and menstruation.
Most placental mammals experience estrous cycles, a defined period of fertility. Afterwards, the endometrial lining of the uterus is reabsorbed into the body rather than being shed.
A very small number of animals (Humans and some primates) experience menstrual cycles instead, where the endometrial lining is shed at the end of the reproductive cycle, causing blood flow.
There is some debate that perhaps shedding the endometrial lining is of less cost than continuously maintaining it. The important thing to note, however, is that mammals which have an estrous cycle are ONLY sexually receptive at certain times. Animals that don't have one, like us, are sexually receptive all the time; we will copulate at any time of the month. I bet men would be pretty upset if we were only sexually receptive for 3 days every 6 months, or some other low number like that. So there is at least one benefit of menstuation: constant sex.
'receptive'....meaning the female will only accept a male at that time and a male will usually only be attracted to her at that time too. That's why we don't see animals fucking for sheer pleasure right and left.
But if you have ever been around a female animal in heat, you could imagine society would not fare well if women were like that and men lost their minds completely too. Men would be fighting to the death and pissing on things while women rubbed their crotch on everything that moved. Both sexes completely under a spell of hormones and stupidity 1000000000x that of a human teenager. No.
IIN that I think periods are stupid?
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Let's explore the difference between estrous and menstruation.
Most placental mammals experience estrous cycles, a defined period of fertility. Afterwards, the endometrial lining of the uterus is reabsorbed into the body rather than being shed.
A very small number of animals (Humans and some primates) experience menstrual cycles instead, where the endometrial lining is shed at the end of the reproductive cycle, causing blood flow.
There is some debate that perhaps shedding the endometrial lining is of less cost than continuously maintaining it. The important thing to note, however, is that mammals which have an estrous cycle are ONLY sexually receptive at certain times. Animals that don't have one, like us, are sexually receptive all the time; we will copulate at any time of the month. I bet men would be pretty upset if we were only sexually receptive for 3 days every 6 months, or some other low number like that. So there is at least one benefit of menstuation: constant sex.
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dirtybirdy
8 years ago
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Redcoats
8 years ago
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You know you're a cute little heartbreaker.
Foxy!
You know you're a sweet little love maker.
Foxy!!!
That's true, but if we had an estrous cycle, wouldn't that mean you could only conceive on those certain dates?
Surely you'd still be able to have sex in between those times (:
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wigz
8 years ago
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'receptive'....meaning the female will only accept a male at that time and a male will usually only be attracted to her at that time too. That's why we don't see animals fucking for sheer pleasure right and left.
But if you have ever been around a female animal in heat, you could imagine society would not fare well if women were like that and men lost their minds completely too. Men would be fighting to the death and pissing on things while women rubbed their crotch on everything that moved. Both sexes completely under a spell of hormones and stupidity 1000000000x that of a human teenager. No.