原文视听

A willingness to mate is a relatively straightforward message.
交配意愿 算是相当直接了当的讯息
But primates are capable of much more complex communication.
但是灵长类 还能进行更复杂的沟通
It starts between a mother and her baby.
故事要从一对母女开始说起
The rainforests of Sumatra.
这里是苏门答腊的雨林
This female orang-utan is forty-two years old.
这只母红毛猩猩四十二岁了
Her third child, a six year old daughter,
它的第三胎，六岁的女儿
is still with her.
还跟在它身边
Orangs look after their children for longer than any other primate...
红毛猩猩照顾下一代的时间
except ourselves.
在灵长类中仅次于人类
It will take her nine years to teach her youngster
它要花九年时间传授下一代
everything she needs to know about this complex tree-top world.
一切有关 这个复杂树梢世界的知识
She must learn how to collect ants and termites.
小红毛猩猩要学习 如何捉蚂蚁和白蚁
How to identify at least 200 kinds of edible plants...
如何辨识至少两百种 可以吃的植物
and how to avoid the poisonous ones.
及避免误食有毒植物
And how to judge when fruit, like this durian, has ripened to perfection.
如何辨别如这颗榴莲等的果实 熟得恰到好处可以吃了

重点解释

But primates are capable of much more complex communication.但是灵长类还能进行更复杂的沟通

be capable of有能力, 能够

Only human beings are capable of speech.

只有人类才具有说话的能力。

Show your teacher what you are capable of.

向你的老师表现出你的才能。

much more多得多

The cost was much more than they had bargained on.

花费的钱比他们预料的多得多。

Orangs look after their children for longer than any other primate...except ourselves.红毛猩猩照顾下一代的时间在灵长类中仅次于人类

look after照料；看管

He has many affairs to look after.

他有许多事务要照料。

I can look after myself.

我能照料自己。

everything she needs to know about this complex tree-top world.一切有关这个复杂树梢世界的知识

know about知道； 了解；

I feel that I know about the value of my own work.

我觉得我知道自己工作的价值。

I'd love to know about the plan.

我想知道这个计划。