杜父鱼类

例句：

1. 1. The dolphins are known for their intelligence and playful nature.
   海豚以其智能和活泼的性格而闻名。
2. 2. The dolphins are often seen playing in the ocean, adding to the beauty of the marine ecosystem.
   海豚经常在海洋中嬉戏，为海洋生态系统增添了美丽。
3. 3. Dolphins are known for their ability to communicate with each other through sound.
   海豚因其通过声音进行交流的能力而闻名。