鲸目动物

The cetacea order includes whales, dolphins, and porpoises.
鲸目包括鲸鱼、海豚和鼠海豚。
Cetacea are known for their intelligence and complex social structures.
鲸类以其智慧和复杂的社交结构而闻名。
Many species of cetacea undertake long migrations each year.
许多鲸类物种每年都会进行长距离迁徙。
The blue whale, a cetacean, is the largest animal ever known to have existed.
蓝鲸作为一种鲸类，是已知存在过的最大动物。
Some cetaceans use echolocation to navigate and hunt in dark ocean depths.
一些鲸类使用回声定位在黑暗的深海中导航和捕食。
The study of cetaceans has revealed remarkable adaptations to aquatic life.
对鲸类的研究揭示了它们对水生生活的显著适应性。
Conservation efforts are crucial for the survival of endangered cetacean species.
保护工作对于濒危鲸类物种的生存至关重要。
Cetaceans communicate with each other using a variety of vocalizations, including songs.
鲸类通过多种声音交流，包括歌声。
Whale watching tours offer a chance to observe cetaceans in their natural habitat.
观鲸旅游提供了在自然栖息地观察鲸类的机会。
Overfishing and pollution pose significant threats to the well-being of cetacean populations.
过度捕捞和污染对鲸类种群的福祉构成了重大威胁。