Another example of massive deforestation is the eucalyptus.

另一大量森林砍伐的例树。

Thousands of orange blossom eucalyptus and grapefruit soap bars.

成千上万的橙花树和葡萄柚肥皂。

The koala diet consists almost entirely of eucalyptus leaves.

考拉的食物几乎全都来自于树叶。

Or like the big eucalyptus tree.

或者大树。

They are herbivores and eat almost exclusively eucalyptus leaves.

它食草动物，并且几乎只吃树叶。

Koalas spend most of their lives high up in eucalyptus trees.

考拉一生大部分时间都在树上度过。

Most of the time, koalas eat and sleep in eucalyptus trees.

大多数时候，考拉在树上进食和睡觉。

But of the 500 eucalyptus species, koalas eat only about 13.

但500种树中，考拉只吃大约13种。

Which of these mammals can survive on a diet of eucalyptus leaves?

以下哪种哺乳动物可以以树叶为食？

Koala bears are a specialist species because they almost exclusively eat eucalyptus.

考拉熊一个特化种，因为它几乎只吃树。

One study had students look up at 200-feet-tall eucalyptus trees for one minute.

有个让学生200英尺（约61米）的树一分钟的实验。

Weird but true, there's a type of eucalyptus tree that has rainbow-colored bark.

奇怪但真实的，有一种树的树皮彩虹色的。

One of the main challenges is finding the right eucalyptus leaves for them to eat.

其中一个主要的挑战找到适的树叶供它食用。

The majority of a koala's water intake comes from eating fresh eucalyptus leaves.

考拉的大部分饮水来自吃新鲜的树叶。

Trees like paper birch white or silver poplar, acacia and eucalyptus light up the night.

白色的纸桦树或银色的白杨树、金欢树和树等树木点亮了夜晚。

Koalas are native to eastern Australia, where the eucalyptus forests they call their home grow.

考拉原产于澳大利亚东部，那里的树林被他称为家乡。

Eucalyptus trees are both food and a home for koalas.

树既考拉的食物，也它的巢穴。

Eucalyptus trees are full of oil and burn quickly, the fire moves on, and the treetops remain intact.

树上满油，燃烧很快，火势会继续蔓延，而树梢完好无损。

The Koala has adapted its digestive system to derive all the energy it needs from eucalyptus leaves.

考拉的消化系统能从树叶获取身体所需的所有能量。

If the eucalyptus was to become extinct, then it is likely that the koala would also become extinct.

如果树灭绝了，那么考拉很可能也会灭绝。