Whereas mature calls are much faster paced.

而成鸟声的节奏要快得多。

Let's see if these owners can understand what different barks mean.

让我们看看主人们是否明白不同声的含义。

We ran through the dark towards the place where the cries had come from.

我们在黑暗之中朝发出喊声的那个地方跑去。

And researchers have now used recordings of that call to get inside the chimpanzee mind.

现在研究人员利用这种声的录音来了解黑猩猩的大脑。

Then comes the problem of deciphering those calls.

然后就是破译这些声的问题。

Certain insects dominate. And the diversity of calls declines as disturbance increases.

某些昆虫的声占主导地位。而随着遭破坏程度的上升，声的多样性会继。

Which one of these insects are among the loudest in the world?

在世界上声响亮的昆虫中，其中哪一种的声是最响亮的？

They wrote a song about animal noises, asking " What does the fox say? "

他们写了一首关于动物声的歌，唱道“狐狸什么？”

Both types of calls are typically too high-pitched for us to hear.

对我们来说，这两种声的音高通常太高，所以人耳听不到。

And researchers using an acoustic camera that converts sounds into colors have figured out how.

研究人员用声像仪将声音转换成颜色，发现了声的秘密。

She and her colleagues set out to locate the source of these unusual chirps.

她和同事着手寻找这些不寻常尖声的来源。

We are trying to use bee sounds, tiger calls and leopard calls which the elephants don't like.

我们正在尝试使用蜜蜂的声、老虎的声和大象不喜欢的豹的声。

So, he does have various purrs, yes.

他的声是不一样的。

Imagine the hormonal cries and the frenzied roars.

想象一求偶的声和歇斯底里的咆哮。

Wiens and his collaborator Zhuo Chen wondered: Why did animals start vocalizing in the first place?

动物最初发出声的原因是什么？

This non-alarm told listeners that the chimp they were hearing was not aware of any snake danger.

这种非警报声告诉听者，发出声的那只黑猩猩没有发现蛇。

Harshness is a salient feature in the sounds of crying newborns, barking dogs and frightened piglets.

刺耳是新生儿哭声、狗吠声和受惊吓的小猪声的显著特征。

It is clear why the owl's cry makes small creatures afraid.

猫头鹰的声令小动物害怕的原因显而易见。

The whole white world thrilled to that wild cry.

那野性的声给整个白色的世界注入了活力。

For example, dogs bark differently when they're encountering a stranger than when they're hungry or want company.

比如，狗狗遇到陌生人的声和它们饥饿或者想要陪伴的的声是不同的。