裸鳃亚目动物

例句：

1. 1.The scientists discovered a new species of marine animals in the deep sea.
   科学家们在深海发现了一种新的海洋动物。
2. 2. Many researchers believe that these animals are key to understanding the evolution of life on Earth.
   许多研究人员认为，这些动物对于理解地球上生命的起源至关重要。
3. 3.The discovery of this animal species has sparked debate about its ecological impact.
   这种动物物种的发现引发了对其生态影响的辩论。