Editing human embryos used for reproduction is still banned.

然而，以繁育目的编辑人类胚胎的行为仍被禁止。

Is a person a person only if he or she comes from standard babymaking procedures?

只有从标准的繁育过程而来的人才能算人来吗？

They're the first to be artificially bred at a zoo in China.

这是中国动物园人工繁育的首例食蚁兽。

China's first captive breeding centre for the giant panda opened in 1983.

中国第一个大熊猫人工繁育中心1983年建立。

There have been some extraordinary discoveries that show us real evidence of dinosaur reproductive behavior.

一些特别的发现为我们提供了恐龙繁育行为的确实证据。

A good example, maybe a wolf and a coyote breeding with each other.

一个好好的例子，也许一只狼和一只丛林狼会互相繁育。

And that could affect their reproduction, their breeding.

而这会影响它们繁育后代。”

Plants and animals grow up faster, they can have more generations.

植物和动物长得越快，它们就能繁育越多后代。

Thomas is involved in efforts with the zoo's current herd of bison.

托马斯参与了动物园当前的野牛群繁育工作。

And ideally, you're not disrupting a piranha breeding extravaganza.

你大概也没打扰繁育期的食人鱼。

Scientists have set up two security fences at each of Assam state's breeding centers.

科学家们阿萨姆邦的每个繁育中心设置了两个安全围栏。

Every one of them eager to make the most of the short breeding season.

每只鸟都急切地想充分利用他们短暂的繁育季节。

Only about one-quarter of the birds were able to raise young in 2021.

2021年，只有大约四分之一的海雀能够繁育幼鸟。

So a red wolf and a coyote can have offspring.

一只红狼和一只郊狼可以繁育后代。

They grow up quickly and have babies early.

它们成长得很快，繁育后代也很早。

As a result, they have successfully bred 68 panda cubs.

成功繁育了 68 只大熊猫幼仔。

Fan Xing, a female, returned to China in September last year to join the breeding program.

“梵星”是一只雌性熊猫，于去年9返回中国参加繁育计划。

While trained Rottweilers are gentle, breeders don't recommend the dogs for households with young children or the elderly.

虽然受过训练的罗威纳犬性情柔和，但是繁育者还是不建议有小孩或老人的家庭养这种狗。

The cause, though, is unclear. Previous studies have shown that women with feminine features are more fertile.

然而原因却无从知晓。 之前的研究曾表明拥有女性化脸庞的女人繁育力更强。

They are just two of the species moved to the Alliance for Sustainable Wildlife 35-hectare Breeding Center.

霍加狓和东邦戈羚羊是最近移居35公顷可持续类同野生动物繁育中心的两个物种。