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Which animals have menstrual cycles

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A:Yes! Menstrual cycles occur in humans and primates, there are very few other mammals that have actual menstrual cycles. [ Source: http://www.chacha.com/question/which-animals-have-menstrual-cycles ]
More Answers to "Which animals have menstrual cycles"
Which animals have menstrual cycles
http://www.chacha.com/question/which-animals-have-menstrual-cycles
Yes! Menstrual cycles occur in humans and primates, there are very few other mammals that have actual menstrual cycles.
Do female animals have menstrual cycles ?
http://answers.yahoo.com/question/index?qid=20090923113051AAK0e5q
They go into heat. It is usually seasonal. Not sure on the bleeding, I have had my cat for three years now and have never seen her bleed, however they have a scent that goes out and male cats come around them more often. (sex is painful for...
Why don't female animals have a menstrual cycle?
http://answers.yahoo.com/question/index?qid=20061130213619AAHFEoo
Human beings and Great apes have menstruation cycle. Other mammals have an estrus cycle. For dogs and cats and such, we call it "heat." But the heats stop when animals are spayed, and this usually happens when the animal is about ...

Related Questions Answered on Y!Answers

Do all animals have a menstrual cycle?
Q: I know dogs have theirs but I don't know about any other animals. If so, which other animals do have a menstrual cycle?
A: Yes!!! Menstrual cycles occur in humans and primates, there are very few other mammals that have actual menstrual cycles. In other mammals it is referred to as estrus, which is actually somewhat different than a menstrual cycle. One difference is that animals that have estrous cycles reabsorb the endometrium if conception does not occur during that cycle. Animals that have menstrual cycles shed the endometrium through menstruation instead. Another difference is sexual activity. In species with estrous cycles, females are generally only sexually active during the estrus phase of their cycle (see below for an explanation of the different phases in an estrous cycle). This is also referred to as being "in heat." In contrast, females of species with menstrual cycles can be sexually active at any time in their cycle, even when they are not about to ovulate. Humans, unlike some other species, do not have any obvious external signs to signal receptivity at ovulation (concealed ovulation). Research has shown however, that women tend to have more sexual thoughts and are most prone to sexual activity right before ovulation.Poodles are dogs which have estrus cycles.
Do female animals have menstrual cycles?
Q: 0.o;I've just noticed that I've never heard of it, which makes me pretty upset because that would mean that we female humans are just extremely unlucky.
A: Females experience estrous or go into heat in most mammals. Estrous does not have the same cyclic period in every animal. Most are tied to the seasons so the young are born in the period with most food available so they only cycle once or twice until they are pregnant.Estrous (or heat) in animals is not hidden as it is in humans. When they come into heat they display receptivity either with visual signals, pheromones, or behavior changes so attract a mate. They rarely fail to become impregnated so do not usually shed the uterus' lining. Domestic animals kept from breeding will shed their menses.
Why don't human females advertise ovulation?
Q: I've been reading a book recently that challenges a lot of the assumptions that go into common ideas about basic human mating instincts, many of which are based in comparisons between humans and other similar social animals (particularly other placental mammals, given their reproductive similarity).An interesting point that it raises is that the menstrual cycle is nearly unique to humans, along with its characteristic lack of the female "being in heat," or advertising the time in which she's fertile and actively trying to mate during that time - in fact, human females paradoxically experience elevated sex drives immediately after going into the infertile stages of their cycles. (Humans aren't entirely unique in this respect - this is also observed in bonobos and orangutans - but it's extremely rare in placental mammals, and seemingly unnecessarily counterproductive to reproduction.) Most other placental mammal females have 'estrous cycles' rather than menstrual cycles, which include a phase of dramatically elevated sex drive and sexual advertising behavior accompanying the fertile period.So, what sort of use would it be for a female NOT to advertise when it's fertile, and not to experience any significant difference in sexual desire or behavior depending on fertility (or even experience elevated levels during infertile, rather than fertile, periods)?
A: For most mammals sex only takes place when the female of the species is ovulating which results in the male's biological urges coming into action. In humans sex is done for pleasure, it helps cement a relationship between the couple. Most animals cannot afford to waste their time on sexual activity when there is no chance of reproduction. So the female needs to indicate when she is fertile.Although it can not be know for sure it seems probable that evolution has made human females have concealed ovulation to ensure the male stayed with their mates to help with the rearing process, our children are after all unable to adequately fend for themselves for many years, unlike the young of other mammals. That not knowing when his mate was fertile ensured he needed to stay around to stop other males from mating with her when she might be fertile. It is suggested that the male is more likely to stay with the female if she is receptive to sex all the time especially as the act in itself is pleasurable rather than just a biological urge to ensure survival of the species.
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