2006-07-31 02:43:57 · 15 answers · asked by cinderella 1 in Science & Mathematics ➔ Biology
The only mammals that have menstrual cycles are humans and great apes. Other mammals have estrus cycles, and since there is sometimes a bloody vaginal discharge, it is mistaken for menstruation.
Here's some more information:
http://en.wikipedia.org/wiki/Estrus_cycle
2006-07-31 02:47:19 · answer #1 · answered by pynkbyrd 6 · 0⤊ 0⤋
Yes. Apes (the closest relatives to humans) have a monthly menstrual cycle, same as humans.
Other mammals, like dogs, cats, horses, cows, pigs, etc., have an estrus cycle, similar to the menstrual cycle. It varies in length for each species. Only during estrus will the female be willing to stand for fertilization, that is, having sex. This is what is known as being "in heat."
This is why apes are generally the only animals that are willing to have sex all year long. ;)
2006-07-31 03:24:04 · answer #2 · answered by pooh8402 3 · 0⤊ 0⤋
A regular menstrual cycle as described here only occurs in the great apes. Menstrual cycles vary in length from an average of 29 days in orangutans to an average of 37 days in chimpanzees. 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.
2006-07-31 03:31:52 · answer #3 · answered by Juggernaut 3 · 0⤊ 0⤋
Mammals go through an estrus cycle. They usually call it heat in dogs and cats. Animal breeders need to keep tract of cycles to know when it is time to breed.
2006-07-31 02:47:08 · answer #4 · answered by science teacher 7 · 0⤊ 0⤋
Yes, I think dogs can b\c Its a phrase called"in Heat" That means that they have it like ever 2-3 times a year and i dont know if cats can i know when girl cats want to mate they role over, and up against things, They act like they are on drugs,
lol,britney
2006-07-31 02:48:29 · answer #5 · answered by Britney B 2 · 0⤊ 0⤋
Yes they sure do, it is part of life in almost all mammals. You would recognize it as..."A dog in heat" for example.
2006-07-31 08:34:49 · answer #6 · answered by Anonymous · 0⤊ 0⤋
If dogs are mammals, then yes!
2006-07-31 02:50:47 · answer #7 · answered by BarbieQ 6 · 0⤊ 0⤋
hi!!! do no longer difficulty it is totally standard...my first 5 classes have been like 11 days overdue and lasted 9 days so there is not any reason to tension. you could no longer make it pass away yet do no longer difficulty after the 1st twelve months or so your classes are widespread and final much less (as much as 5, 6 days). good luck! wish I helped!
2016-11-03 09:06:32 · answer #8 · answered by ? 4 · 0⤊ 0⤋
My toy poodle does. But hers is not once a month like mine. She goes about twice a year.
2006-07-31 02:45:50 · answer #9 · answered by flutter_butter_fly 2 · 0⤊ 0⤋
Yes, although in animals they are referred to as being 'in heat'.
2006-07-31 02:45:16 · answer #10 · answered by They call me ... Trixie. 7 · 0⤊ 0⤋