Predation can affect the behavior, group structure, body size and other characteristics of a species.
捕食能够影响一个物种的行为、组织结构、体型大小和其他特征。
Once and long ago, the human species had a 10-foot high structure.
曾经很久前，人类物种的体型有10英尺高。
For example, it appears from their brain structure that toothed species are unable to smell.
打个比方，从他们的大脑结构看来，锯齿类鲸不能闻。
There were less species and simple structure in the plantation and the road greenbelt.
人工林的植物种类较少，且层次简单。
Control community structure and avoid single-species;
进行群落调控，避免物种单一化；
Control community structure and avoid single-species;
进行群落调控，避免物种单一化；
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