which sea animals have menstruation like women do?
454709
Human are unique in having a monthly cycle.  Most mammals have a strict breeding season.  As set by that breeding season, other mammals will undergo a process like menstruation.  These would be whales, dolphins, seals, sea lions, sea otters, dugongs, etc.
999898
only when it happens in the western hemisphere...during el nino while a hurrican blows in the month of july....wait of course they can they just say man-eating is because the women are smart to stay out of the water when there are sharks around...men say oooh...a shark let's go pet it. usually alchohol is involved with tha last part.
275150
http://en.wikipedia.org/wiki/Special:Search?search=reproduction+in+animals&go=Go
182163
all women do. its the mussels contracting. and the lining of the uterus shedding. the contractions can be so strong that cramps can even be felt down into the legs
1010312
yes.\n\nthey are mammals and do not breathe underwater.\n\nthey take in air at the surface, so it does not matter what type of water they live in.
752843
I like seahorse they are cute
190202
Great apes do too. \n\n"Females of other mammalian species go through certain episodes called "estrus" or "heat" in each breeding season. During these times, ovulation occurs and females become receptive to mating, a fact advertised to males in some way. If no fertilisation takes place, the uterus reabsorbs the endometrium: no menstrual bleeding occurs. Significant differences exist between the estrus and the menstrual cycle. Some animals, such as domestic cats and dogs do produce a very short and mild menstrual flow. However, due to its small amount (and personal cleanliness in cats) it passes pet owners largely unnoticed."\n\nI couldn't find exactly WHY though.
797662
just what do you call a female dog
621541
There are sooo many articles on this subject on the internet!  Of course, there has never been a study to conclusively prove the accuracy of one school of thought over the other.  What woman would volunteer for that study?  I included a couple of extra links with differing opinions.  I pasted one that jibes with what I personally think is probably the case.\n\n\n Menstruation    Every woman diver eventually finds herself with the decision of whether to dive during her menstrual period.  Many women choose to dive during their periods rather than miss an exciting underwater experience, and there's no medical reason not to.  Considerations include the use of tampons or sanitary napkins or both, privacy and bathroom availability at the dive site.\n  Some people wonder whether sharks could be attracted to a menstruating diver.  There's no evidence the small amount of blood that may seep into the water was ever responsible for a shark attack.  So don't worry about being eaten for lunch by sharks.\nhttp://www.wazeesports.com/FAQ.htm
1110735
The quick answer is NO.  There are two types of mammals when it comes to the menstruation cycle: Menstrual, like humans and some primates, and Oestrous, like most marine mammals, etc. In oestrous mammals the luteal phase is greatly reduced compared to the menstrual mammals. So there is little or no proliferation of the endometrium (i.e. lining of the uterus) and therefore no precipitous shedding of the endometrium.
676105
Actually, very few animals menstruate. It's mainly humans and a handful of other primates like the great apes.\n\nStill, all female mammals go through the same basic reproductive cycle which keeps the uterus ready to accept an embryo at just the right time after ovulation and fertilization. In all cases it involves the same basic ovarian hormones (mainly estrogen and progesterone) and the same pituitary hormnes (FSH and LH). It's just organized a little differently between humans and other mammals, such as cows.\n\nOne important difference between humans and cows is that humans shed the lining of the uterus each month (menstruation) whereas most mammals, including cows, reabsorb it. Sometimes declining levels of certain hormones can cause vaginal bleeding in other mammals, but this is not the same thing as menstruation.\n\nAnother important difference is that the females of most mammal species are only sexually receptive during the time right around ovulation. This is the basis of the "mating season" seen in some species, and the "heat" seen in others (including cows). \n\nThe bottom line is that while the human reproductive cycle is very similar to most other mammals, at some point we evolved some pecularities not common to most animals. It's hard to speculate exactly why that happened-- it's all just part of the facts of life.
740543
Go to www.coolnurse.com/menstrual.htm.
123576
How could someone name oceanlife animals if they themselves don't know? Do you mean rare species? I am not very sure but search it on the internet. Happy Valentine's Day!
767565
The female beaver reproductive tract is composed of the ovaries, uterine tubes, infundibula, uterus, and the cloaca. The cloaca is a single, enlarged chamber at the end of both the urinary and reproductive tracts through which solid waste, liquid waste, and gametes exit the body. While having a cloaca is generally a primitive trait, for rodents, it is a derived trait. Possessing a cloaca gives the beaver another way to streamline its body during aquatic locomotion. Male and female beavers have very few external differences, other than females having six teats whereas males have two  During non-breeding seasons, it may be impossible to distinguish visually a male beaver from a female. To distinguish between the two sexes, an internal examination of the body must be done. Even internal examination can lead to confusion, however, as some male beavers have uteri similar to those seen in female beaver. The female beaver has a single bicornuate uterus. The beaver gestation period is approximately 3.5 months, and average litter size ranges from two to five, given adequate nutrition and water availability.
434454
Claim: Hymens are an aquatic trait. \n\nFact: Besides humans, hymens are found in lemurs (fellow primates, you'll note), guinea pigs, mole rats, hyenas, horses, llamas, and fin whales. Except for fin whales, none of these mammals are aquatic.  Also, AATers suggest that the reason for a hymen in humans was to seal off the female reproductive organs from waterborne parasites and such; but since the hymen is generally absent from the time of first intercourse (and very often before) this protection wouldn't be available for much of the female's lifespan.\n\nSo if by fihes you mean fin whales yes they do :D\n\nEDIT\nSo you know AAT stands for Aquatic Ape Theory
473196
Women, the only animals that bleed for a week and don't die.
256528
Using Google Scholar I found at least one review of osmoregulation in marine mammals: \n\nhttp://jeb.biologists.org/cgi/content/full/204/11/1831\n\nAnd by using a few keywords, many articles come up. Try that :-)