Also at risk are endangered animals like river dolphins.

而像是淡水河豚等的濒危物种境况仍令人堪忧。

The first one was on the pink river dolphin.

第一集是粉红河豚。

Together, we chased pink river dolphins through drowned forests.

我们一起在淹没的森林里追寻粉红河豚。

The pink river dolphin is now endangered.

粉红河豚现在濒临灭绝。

These boto or pink river dolphins, they're so cute, right?

这些粉红河豚，很可爱吧？

She has been working to protect Amazon river dolphins for the past 25 years.

在过去的25年里，她一直致力于保护亚马逊河海豚。

A newly identified species of river dolphin found nowhere else on Earth.

这种淡水豚是一个新种，在地球上其它地方均无分布。

It's definitely illegal in Peru to kill a river dolphin, but it happens.

在秘鲁，捕杀海豚绝对是违法的，但它确实发生了。

Fish are so easy to catch, she even has enough to feed the local river dolphins.

不仅能够轻松捕到鱼，她甚至还有多余的食物喂食当地的江豚。

Now let's talk about some of that research, specifically, into the pink river dolphin.

现在让我们来谈谈其中的一些研究，特别是关于粉红海豚的研究。

Meaning perhaps these calls between mother and calf are, like the river dolphins themselves, an evolutionary relic.

这意味着，也许河豚这种母子间交流的叫声，就像河豚本身一样，是进化的遗迹。

Currently, Amazon river dolphins can still be found in large numbers across South America's huge Amazon and Orinoco river basins.

目前，在南美洲巨大的亚马逊河和奥里诺科河流域仍能发现大量的亚马逊河海豚。

Silva says this low reproduction rate increases the risk of extinction when the population of the Amazon river dolphins suffers major drops.

席尔瓦说，当亚马逊河海豚的数量大幅度下降，这种低繁殖率增加了灭绝的风险。

CHRISTINE WILKINSON: And the Amazon River dolphin.

克里斯汀·威尔金森：还有亚马逊河豚。

Make sure to catch the first episode on the mysterious pink river dolphin after you listen to this one.

听完这首歌后，一定要赶上关于神秘的粉红河豚的第一集。

Over several years, Melo-Santos has recorded the sounds of Araguaian river dolphins that came calling at the Mocajuba fish market.

几年来，梅洛-桑托斯 (Melo-Santos) 记录了在莫卡朱巴 (Mocajuba) 鱼市呼​​唤的阿拉瓜河豚的声音。

And with that, pink river dolphins want to go in there, and it's a great time to go in pods and maybe with their young and slurp up these catfish eggs or other types of fish.

有了这个，粉红河豚想进去，现在是进入豆荚的好时机， 也许和他们的孩子一起吃这些鲶鱼卵或其他类型的鱼。