So, we've documented close inbreeding, fathers breeding with daughters, granddaughters and even great-granddaughters.

因此，我们记录了近亲繁殖，父亲与女儿、孙女甚至曾孙女进行繁殖。

And with inbreeding that jeopardizes their long-term survival in the wild.

近亲繁殖不利于它们在野外的长期生存。

For example, they keep a genetic bank to stop inbreeding at hatcheries.

例如，他们建立了一个基因库来防止孵化场里的鲑鱼出现近亲繁殖。

But all 2,000 horses all living today are again at risk of inbreeding.

但是现存的 2，000 匹马再次面临近亲繁殖的危机。

Like gorillas and orangutans today, they lived in small, dispersed pockets, which means more inbreeding and less genetic diversity.

像如今的大猩猩和猩猩，他们生活在分散的小口袋里，这意味着更多的近亲繁殖和更少的遗传多样性。

But without genetic diversity, you can get health and behavior issues related to inbreeding.

但如果没有遗传多样性，就会产生与近亲繁殖有关的健康和行为问题。

Balto's genome showed lower rates of inbreeding than almost all modern dog breeds.

巴尔托的基因组显示出比几乎所有现代犬种更低的近亲繁殖率。

But inbreeding was a big problem on the island and the population is dying out.

但在这个岛上，近亲结婚是个大问题，人口也正在衰减。

We're not talking banjo-playing, King-of-Spain, Cersei-Jamie inbreeding, but every family tree inevitably grows forks.

我们不是在说演奏班卓琴的西班牙之王瑟曦杰米近亲繁殖，但每棵家族树都不可避免地长出分支。

It was whispered in Vienna that the heir was clinically insane, that his family's inbreeding had caught up with him.

维也纳有传言说，这位继承人被诊断为精神失常，他的家族近亲结婚害了他。