In fact, it's even more rigged than birth rates show — human conception results in about 150 male zygotes for every 100 females!

实上，它操纵比出生率更夸张——人类受孕结果是，每 100 女性胚胎就有大约 150 男性胚胎！

The menopause is a natural part of ageing that happens as a woman's hormones decline and she stops having monthly periods and being able to get pregnant naturally.

更年期是随着女性荷尔蒙下降，而发生自然衰老过程部分，并且她每月不再来月经，不能自然受孕。

They see free IVF as something out of Margaret Atwood's best-selling book, The Handmaid's Tale.

他们认为体外人工受孕是玛格丽特·阿特伍德最畅销书《使女故》中内容。

By analyzing the villi that provide contact with the mother's blood to the fetal membrane, Muneta deduced that the fetus must be living in an environment of elevated ketones from the start of pregnancy.

通过分析母体血液和胎膜之间起着纽带作用绒毛，Muneta 推导出，母体受孕之，初胎儿便生活酮体水平较高环境中。

The story of our ancestry becomes muddled before conception.

我们祖先故受孕前 是难以捉摸。

This happens because of an error following conception.

这种情况是由于受孕后出错造成。

Right, from conception, right until the time they're born.

是，从受孕那刻起，直到他们呱呱坠地。

This is borne out by a slight rebound across all studies in the months following a dip in either birth rate or TFR, suggesting some conception is merely postponed. But the data reveal there is more to it.

出生率或总生育率下降后几月内，所有研究都出了轻微反弹，这证明了这点，表明些受孕只是被推迟了。但数据显示，情况还不止于此。

But realizing that vision is not without its challenges, not least because these particular cells, they emerge just six days after conception.

但这愿景实存着挑战，不仅是因为这些特定细胞受孕 6 天后才出。

What Plan B does is it basically prevents ovulation so that there is no egg to meet the sperm during this time, which means you can't conceive during the most important 72 hours after sex.

紧急避孕药作用是阻止排卵，使得这段时间内没有卵子可以与精子结合，这意味着性行为后关键 72 小时内无法受孕。

As they give birth to only one or two cubs when mating is successful, the giant panda's survival in the wild is anything but a foregone conclusion.

熊猫若成功受孕，每胎也只能产下1～2只小宝宝，因此，大熊猫野放存活率根本无法遽下结论。

But first, let's talk about what we won't be talking about: We're not going to give any advice. We're not going to talk about STIs — even though some STIs can affect conception.

但首先，让我们谈谈我们不会谈论：我们不会给出任何建议。我们不会谈论性传播感染——尽管有些性传播感染会影响受孕。

" Your baby has a condition known as Down's Syndrome. The problems you will face if you don't terminate this pregnancy could be overwhelming, especially now that Paul is no longer with you."

“你孩子患有唐氏综合症。如果不终止这次受孕，以后你会遇到很多麻烦，再说保罗也不了。”

A technology like this, if it's developed to the point where we can gestate a baby for the full length of term outside the human body, then viability begins at conception.

像这样技术，如果它发展到我们可以体外孕育完整婴儿，那么生存能力就从受孕开始。

And the young people conceived using donated sperm[s], eggs or embryos will soon have the right to know the identity of their donors for the first time.

使用捐赠精子、卵子或胚胎受孕年轻人不久将第次有权知道捐赠者身份。

Then, right after delivery, they drop sharply and return to pre-conception levels only three days later. This often results in intense mood swings and may even trigger depressions.

然后分娩后，雌激素水平急剧下降，仅三天后就恢复到受孕前水平。这通常会导致情绪剧烈波动，甚至可能引发抑郁症。

Just as the conception and birth of her son had been a fleshless miracle, so her death was a fleshless exit.

正如她受孕生子已成为了精神奇迹那样，那么她死亡也只是种非肉体意义上离去。

It was thought that um strenuous exercise such as this would lower a woman's ability to conceive, would impair her fertility.

人们认为像这样剧烈运动会降低女性受孕能力，会损害她生育能力。

We feel entitled to artificially inseminate a cow and when she gives birth, we steal her baby.

我们自觉有权利为牛进行人工受孕，当她们生出幼崽，我们偷走她宝宝。

Now as we know, pandas are notoriously reluctant to mate: the female pandas have a narrow window of fertility, they're solitary creatures and it takes two to tango when it comes to reproduction.

众所周知，大熊猫是出了名不愿交配：雌性大熊猫受孕窗口期很短，它们又是独居动物，而繁殖这件需要双方配合才能完成。