In the Amazon, the first to appear are the spider monkeys.

在亚马逊，第一个映入眼帘的是蜘蛛猴。

The reason he was pursuing 35 spider monkeys through the rainforests of southern Mexico was to record their whinnies.

他穿越墨西哥南部的雨林追寻35只蜘蛛猴，目的是记录它们的叫声。