n.儒艮，海牛(主要生活于印度洋的大型银灰色厚皮海洋动物)

Dugongs are large marine mammals that are closely related to elephants.
儒艮是与大象有亲缘关系的大型海洋哺乳动物。
Dugongs feed primarily on seagrasses and can often be found in coastal waters.
儒艮主要以海草为食，常在近海水域发现。
The dugong's scientific name is Dugong dugon.
儒艮的学名是Dugong dugon。
Dugongs are found in the Indian and western Pacific oceans.
儒艮分布在印度洋和西太平洋。
Dugongs have a lifespan of around 70 years in the wild.
儒艮在野外的寿命约为70年。
The dugong is listed as vulnerable by the IUCN.
儒艮被IUCN列为易危物种。
Dugongs are protected in many countries due to their endangered status.
许多国家因儒艮濒危而对其进行保护。
The dugong's population has declined significantly due to habitat loss and hunting.
由于栖息地丧失和狩猎，儒艮的数量显著下降。
Conservation efforts are underway to protect the dugong and its habitat.
正在进行保护工作以保护儒艮及其栖息地。