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。

As the human population grew, the number of red wolves fell rapidly.

随着人口增长，红狼数量锐减。

In fact, the red wolf is smaller than its grey cousin, which is found in Europe and Asia.

事实上，红狼的体型小于生活在欧洲和亚洲的灰狼。

The red wolf once roamed a huge swath of the eastern United States.

红狼曾在美国东部大片地区出没。

And adult red wolf weighs up to 30 kilos and measures up to 1.8 metres long, including the tail.

成年红狼的体重达30公斤，长1.8米（包括尾巴）。

It declared that the red wolf was extinct in the wild and began a controlled breeding programme.

并随即宣布野生红狼灭绝，并开始了有控制的人工饲养计划。

The red wolf experiment is the first attempt to bring back an animal to its original habitat.

这也是让物种回归原始栖息地的首次尝试。

So the ghost part is the red wolves are gone, and we presumed they took all of their genes with them.

“幽灵”部分代表消失的红狼，我们推测它们带走了所有的基因。

Red wolves live in packs of five to eight.

红狼以五到八只为一组生活。

Red wolves in a pack communicate in many different ways.

狼群中的红狼以多种不同的方式进行交流。

Red wolves are the smallest wolves in the world. They are only about 26 inches tall at the shoulder.

红狼是世界上最小的狼。它们的肩高仅约 26 英寸。

One time, red wolves lived all over the south-eastern United States.

曾经，红狼遍布美国东南部。

That's almost like going back in time and un-doing the genetic bottleneck from 1980-making the new red wolf population more genetically diverse.

这几乎就像时光倒流，解除了1980年的基因瓶颈——让新的红狼种群在基因上更加多样化。

Now, there are over one hundred red wolves living in the wild.

现在，野外生活着一百多只红狼。

The population centre was in the eastern United States, but red wolves could also be found in many other parts of the country.

集中在美国东部，但美国其它地区也可以发现它的踪迹。

Then, in 1980, twenty red wolves were found in the wild and taken to a safe place.

1980年， 人们在野外发现了20只红狼， 并被带到了安全的地方。

The next steps will include how to release red wolves in a way that takes advantage of the ghost alleles hiding in coyote populations.

下一步将包括如何利用隐藏在郊狼种群中的“幽灵”等位基因放归红狼。

As red wolves are released back into the wild, breeding with these coyotes could help the critically endangered species regain some of its genetic diversity.

当这些红狼被放归野外时，与这些郊狼交配可以帮助这种极度濒危的物种恢复一些基因多样性。

Together, they found that some coyote populations in Louisiana and Texas who were protected from hunting still retain huge amounts of red wolf genes-some individuals are almost 60% red wolf.

她们共同发现，路易斯安那州和德克萨斯州的一些受到保护、免受捕猎的郊狼种群仍然保留着大量的红狼基因--有些郊狼个体几乎保留了60%的红狼基因。

It was, you know, all wolves were heavily persecuted, but the red wolves were heavily persecuted to the point that only 14 were left.

所有的狼群都受到了严重的迫害，红狼被严重迫害到只剩下14只。