How to find dens that may be hidden underground?

还有藏在地下的巢穴，这种巢穴又怎么找？

They're built around the roots of small trees which anchor them as water levels rise.

巢穴就建在小树的根部周围，当水位上升时小树就会将巢穴固定住。

They've you know, they've padded out their nests.

它们已经填满了巢穴。

They also take care of the nest and search for food.

它们还照料巢穴和寻找食物。

They don't communicate so well with other nestmates anymore.

它们不再和其他的巢穴同伴交流。

Well, it's the den of the young baba de culebra.

这是吹沫的巢穴。

And they have the perfect nesting site right next to it.

右侧便是它们选择巢穴的最佳地点。

It's a female returning to her lair.

这是只母豹，正要返回巢穴。

Soldiers are chiefly defenders of the nest.

兵蚁的首要任务是守护巢穴。

There's no meat for the pups back at the den tonight.

今晚巢穴中的狼崽们没有肉吃了。

But this doesn't get me any closer to finding their den.

但这样没法让我找到他们的巢穴。

But the juveniles instinctively stay in the security of the nesting area.

不过龙们本能地待在安全的巢穴里面。

And so, before you even ever make it to the orangutan nests.

所以，在你进入红毛猩猩巢穴之前。

They follow this on their return to the nest.

它们在返回巢穴时也会这样做。

If there's a lot more non-native birds, there's a lot more non-native bird nests.

“如果非本土鸟类的数量增多，那非本土鸟类的巢穴也会增加。

They need to study their nests, but the orangutans build them at the top of tall trees.

科学家们需要研究猩猩的巢穴，可猩猩会把巢穴建在高大的树顶。

Baby raccoons don't leave the den for the first few months.

小浣熊在头几个月里不会离开巢穴。

This is some of the first footage captured inside a wild nest.

这是第一个用镜头捕捉的野外巢穴。

Nor does he stop till he has robbed the poor bees of all their store.

直到他将可怜的蜜蜂的巢穴洗劫一空。

They still use resin to build the internal structures of their nests.

它们仍然用树脂构建巢穴的内部结构。