41–50 of 68 posts
Please fix the apostrophe in "animal's" It is annoying and leads non-native speakers on the board astray. Thank you. To non-native speakers: apostrophes are for possession, not plural.
> To non-native speakers: apostrophes are for possession, not plural. It's not so easy. it's = contraction of it is or it has its = possessive form of it
The mother actively tries to kill anything that might be in her uterus, she even periodically cleans her uterus radically by ejecting a layer of it.
The embryo needs to produce hormones that manipulate the mother to stop that, and deliver them into the mother.
If the embryo fails, it dies.
Source: http://aeon.co/magazine/science/pregnancy-is-a-battleground-...
We do something similar in software development. If our program experiences a segfault, we usually let it die, instead of figuring out at runtime what went wrong and trying to do what we still can do. Then we change something and try again.
Making it hard for the embryo in the beginning and starting over if it didn't make it, is the biological equivalent to that strategy.
It might result in a heuristic whether it's worth investing more resources in it. Saving resources gives an evolutionary advantage.
On the other hand, it makes evolutionary progress harder since more conformity of the embryo is a condition to survive.
Earlier quoted context omitted.
Isn't it sad? It's such a frustrating mistake. There's a bar that we drive past frequently that does it with everything. They're "Now accepting application's" and their "Burger's are $2" Sad.
Since I moved to Missouri, I've been upset by a similar grammatical error: quotation marks used for emphasis. You would expect, say, all-capitals or an underline or italics, but you instead see 'Come taste the "best" burger in Missouri,' which is awful. In New York, where I grew up, that use of quotation marks is called "scare quotes": quotation marks in all cases signal that you're detaching a text fragment from its…
Earlier quoted context omitted.
> To non-native speakers: apostrophes are for possession, not plural. It's not so easy. it's = contraction of it is or it has its = possessive form of it
I've never seen "it has" written "it's". Or maybe I didn't understand those correctly.
"It's been a long time since we last met."
Earlier quoted context omitted.
Isn't it sad? It's such a frustrating mistake. There's a bar that we drive past frequently that does it with everything. They're "Now accepting application's" and their "Burger's are $2" Sad.
Since I moved to Missouri, I've been upset by a similar grammatical error: quotation marks used for emphasis. You would expect, say, all-capitals or an underline or italics, but you instead see 'Come taste the "best" burger in Missouri,' which is awful. In New York, where I grew up, that use of quotation marks is called "scare quotes": quotation marks in all cases signal that you're detaching a text fragment from its…
The auther started the blog while at the University of Georgia, so the problem isn't confined to Missouri.
tl;dr: What we know for sure: foetuses produce hormones to keep the endometrial tissue from thinning. Once a zygote has implanted, the mother's hormones are thus no longer in control of whether her uterus will support its growth or not. Menstruation, when it happens, forcefully cleans out implanted zygotes, returning the uterine hormonal balance to normal. What we guess that that implies: menstruation is a side-effec…
No.
This is not a tl;dr of the article, which proposes several scientific hypotheses, which do not include what you have said.
It mentions the case of spontaneous abortion being beneficial where the embryo is not likely to be viable or the foetus is causing harm to the mother.
https://answers.yahoo.com/question/index?qid=20060612224917A...
It's however not "the same" as the one in primates:
http://en.wikipedia.org/wiki/Menstruation_%28mammal%29
"Some species, such as domestic dogs, experience small amounts of vaginal bleeding while in heat; this discharge has a different physiologic cause than menstruation."
And if we talk about "periods" (like in the article title) and not just "bleeding," the fertility "periods" are everywhere.
http://en.wikipedia.org/wiki/Spawn_%28biology%29
Even corals have spawn cycles.
Most animals do have fertility "periods" they just don't bleed. But again, we are primates, and a lot of primates do have the same menstruation that the humans have. So humans certainly aren't special in that aspect.
Earlier quoted context omitted.
> To non-native speakers: apostrophes are for possession, not plural. It's not so easy. it's = contraction of it is or it has its = possessive form of it
I've never seen "it has" written "it's". Or maybe I didn't understand those correctly.
Earlier quoted context omitted.
> To non-native speakers: apostrophes are for possession, not plural. It's not so easy. it's = contraction of it is or it has its = possessive form of it
I've never seen "it has" written "it's". Or maybe I didn't understand those correctly.
Earlier quoted context omitted.
A glance at the homepage makes me wonder if your grandma is a former co-worker of Grace Hopper or something like that.
You should understand that "my mom" and "my grandmother" are commonly used to denote technical illiteracy/incompetence and inability to keep up with the latest technological advances. This usage remans an unchallenged bastion of both sexism AND ageism -- a double whammy! Proper usage: * This app is so easy, my mom could use it! * This article is easy to follow and avoids too much jargon -- my grandma would even under…