Are humans the only species where the females menstruate?

Answer 1

Only human beings and great apes experience a true menstrual cycle.

Most placental mammals experience estrus instead
Estrous cycles start after puberty in sexually mature females and are interrupted by anestrous phases. Typically estrous cycles continue until death. Some animals may display bloody vaginal discharge, often mistaken for menstruation

Cats
The female cat in heat has an estrus of 14-21 days and is an induced ovulator. Without copulation she may enter interestrus before reentering estrus. With copulation and in the absence of pregnancy, cycles occur about every three weeks. Cats are polyestrous but experience a seasonal anestrus in autumn and early winter.


Dogs
A female dog is diestrous and goes into heat typically twice every year, although some breeds typically have one or three cycles a year. The proestrus is relatively long at 5-7 days, while the estrus may last 4-13 days. With a diestrus of 7-10 days, a typical cycle lasts about 3 weeks followed by about 150 days of anestrus.


Horses
A mare may be 4 to 10 days in heat and about 14 days in diestrus. Thus a cycle may be short, i.e 3 weeks. Horses mate in spring and summer, autumn is a transition time, and anestrus rules the winter.

A feature of the fertility cycle of horses and other large herd animals is that it is usually affected by the seasons. The number of hours daily that light enters the eye of the animal affects the brain, which governs the release of certain precursors and hormones. When daylight hours are few, these animals "shut down," become anestrous, and do not become fertile. As the days grow longer, the longer periods of daylight cause the hormones which activate the breeding cycle to be released. As it happens, this has a sort of utility for these animals in that, given a gestation period of about eleven months, it prevents them from having young when the cold of winter would make their survival risky. This is why animals can reproduce during only certain times of the year.


Others
Estrus frequencies of some other mammals:

Bovine - 21 days
Elephant - 16 weeks
Goat - 21 days
Rodents - 4-5 days
Sow - 21 days

Answer 2

I heard from a zoo where I live that the only Mammals in the world in which the females menstruate like Humans, are Gorillas and possibly a few other primates.
Cats and dogs will sometimes bleed a bit during heat, but it's not really menstruation.
But, many animals have been studied and shown to menstruate in a sense, but all the tissues and fluids are absorbed into the bodies. Nothing comes out.

So, technically; Yes, all animals do. But it's different, it doesn't involve all the blood and such like it does with people or apes.

Answer 3

No! Every mammal menstruates. From dogs to cats to dolphins

Answer 4

no every female mammal menstruates but human females are the only ones that vocalise and call you the silly wee man you are for EVEN ASKING THAT QUESTION lol only joking, ask me next week and youll get a sassier answer. hmmmmmm just building up to my pre menstrual ***** from hell mode - apologies - NOT!!!!!!!!!!!

Answer 5

Nope. I know that female dogs and cats do.

Answer 6

no.
I do believe that all mamals do menstruate.

Answer 7

I know dogs and cats do too...

Answer 8

ever hear the term "dog on heat"?

Answer 9

no. mammals bleed when it's time to mate.

Answer 10

no cats do and dogs