1. Planarians are well-known for their ability to undergo morphallaxis, regenerating an entire body from even a small fragment.

计划蠕虫以其能够经历形态再生的能力而闻名，即使只有一个小片段，也能重新生长整个身体。

2. Morphallaxis is a fascinating biological phenomenon that scientists are still trying to fully understand.

形态再生是一个令人着迷的生物现象，科学家们仍在努力全面了解它。