# The manatee **Published by:** [manatee](https://paragraph.com/@manatees/) **Published on:** 2022-08-03 **URL:** https://paragraph.com/@manatees/the-manatee ## Content 海牛被认为是大约 6000 万年前从陆生哺乳动物四足动物进化而来的,与长鼻目和有蹄类动物密切相关。据考证,海牛是陆地上的“居民”,是大象的远亲。近一亿年前,由于自然变化或缺乏放牧能力而被迫在海中谋生。进入海洋后,它仍然保持着食草动物的习性。它有2500万年的海洋生物历史,是一种罕见的海洋哺乳动物。它的大身躯和厚厚的皮肤(3-4 厘米)类似于大象的颜色。 ## Publication Information - [manatee](https://paragraph.com/@manatees/): Publication homepage - [All Posts](https://paragraph.com/@manatees/): More posts from this publication - [RSS Feed](https://api.paragraph.com/blogs/rss/@manatees): Subscribe to updates