While some primates in Africa have been able to adapt to a grassland environment, it appears that their North American counterpart simply couldn't.

虽然非洲的一些灵长类动物已经能够适应草原环境，但北美的灵长类动物似乎根本做不到。

A savannah, a grassland environment that lacks a large variety of plant life, would be unable to host the large and varied ecosystems that currently exist in the rainforest.

而一个大草原，即一个缺乏大量植物生命的草原环境，将无法容纳目前存在于雨林中的大型且多样的生态系统。