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，它的操纵比现在的出生率更夸张——人类受孕的结果是，每 100 个女性胚胎就有大约 150 个男性胚胎！

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，而发生的自然衰老过程的一部分，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·阿特伍德最畅销的书《使女的故》中的内容。

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.

通过分析在母体血液和胎膜之间起着纽带作用的绒毛，Muneta 推导出，在母体受孕之，初胎儿便生活在一个酮体水平较高的环境中。

The story of our ancestry becomes muddled before conception.

我们祖先的故在受孕前 是难捉摸的。

This happens because of an error following conception.

这种情况是由于受孕后出现的差错造成的。

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

是的，从受孕那一刻起，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.

在出生率或总生育率下降后的几个月内，所有研究都出现了轻微反弹，这证明了这一点，表明一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.

但这一愿景的实现存在着挑战，不仅是因为这些特定细胞在受孕的 6 天后才出现。

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.

紧急避孕药的作用是阻止排卵，使得在这段时间内没有卵与精结合，这意味着在性行为后的关键 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，大熊猫野放的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的：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."

“你的孩患有唐氏综合症。如果不终止这次受孕，后你会遇到很多麻烦，再说现在保罗也不在了。”

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.

像这样的技术，如果它发展到我们在体外孕育一个完整的婴儿，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、卵或胚胎受孕的年轻人不久将第一次有权知道捐赠者的身份。

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.

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

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

正如她的受孕生已成为了一个精神奇迹那样，那么她的死亡也只是一种非肉体意义上的离去。

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

人们认为像这样的剧烈运动会降低女性的受孕能力，会损害她的生育能力。

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，我们偷走她的宝宝。

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，大熊猫是出了名的不愿交配：雌性大熊猫的受孕窗口期很短，它们又是独居动物，而繁殖这件需要方配合才能完成。