Periods

[Charlie]

Why is it most animals do not have period and undergo estrus and we (humans) do not?

[baikuza]

The estrus cycle (also œstrus or estrous cycle) refers to the recurring physiologic changes that are induced by reproductive hormones in most mammalian placental females (humans and great apes are the only mammals who undergo a menstrual cycle instead). Estrus cycles start after puberty in sexually mature females and are interrupted by anestrous phases (see below: anestrus). Typically estrus cycles continue until death. Some animals may display bloody vaginal discharge, often mistaken for menstruation.
(http://en.wikipedia.org/wiki/Estrus)

any doubt?

[vinaya]

what are the visible symptoms
which show during a estrus cycle

[Dr.Stein]

Do you want us (human being) to have breeding season like them (animals)? Do you want us to have an acceptance period which only in the estrus period we can mate?

[baikuza]

@Dr. Stein
hm.. with whom you are talking? i do not understand. (@_@) ?

[Dr.Stein]

Of course to Charlie who threw the question:

Why is it most animals do not have period and undergo estrus and we (humans) do not?

You might forget that Dr.Stein always answer the question with question

[Charlie]

Ask me again next time I get painful period cramps

[Dr.Stein]

What?

[jnkdna]

why do we(women) get period cramps? wat is period cramps?

[Dr.Stein]

Period cramps? I have just realized that I am just a little stone in the shore...

[Poison]

Ask me again next time I get painful period cramps

Get an Apranax pill. (firstly go to a doctor and ask of course) It works. (No, I'm not advertising )

why do we(women) get period cramps? wat is period cramps?

It is usually because of the contraction.
It is a terrible pain, if you don't get a pill sometimes you just can not move. Not in all women but some of them experience it

[Dr.Stein]

Do you know that we can consume pill for a painfull during mens for a headache and tootache?