finless porpoise

例句：

1. 1.The finless porpoise is a rare species that can be found in the ocean.
   无鳍豚是一种稀有物种，可以在海洋中找到。
2. 2. The finless porpoise has been classified as a vulnerable species due to habitat loss.
   由于栖息地丧失，无鳍豚被列为易危物种。
3. 3.The finless porpoise is known for its unique ability to swim underwater using only its nose and mouth.
   无鳍豚以其仅用鼻子和嘴巴在水下游泳的独特能力而闻名。