faunal simplification

例句：

1. 1.The fauna of the forest is diverse and fascinating.
   森林中的动物种类丰富且引人入胜。
2. 2. The study of fauna is essential for understanding ecosystems.
   研究动物对于理解生态系统至关重要。
3. 3. The park has a wide variety of fauna, including many rare species.
   这个公园拥有丰富的动物种类，包括许多稀有物种。