鲸类

例句：

1. 1. The whale is the largest animal on Earth.
   鲸是地球上最大的动物。
2. 2. Whales are known for their intelligence and social behavior.
   鲸以其智能和社交行为而闻名。
3. 3. The whale's baleen can be used to make tools.
   鲸的齿可以用于制作工具。