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海牛

出自维基百科,自由个百科全书
海牛家族个一种:西印度海牛

海牛(学名:Trichechu),是一种立在地球海洋当中生存个哺乳动物。搭其余个海狮海豹海狗弗一样,海牛个海洋进化更加深入,后肢已经退化,只好用前肢滑行,体长2.5-4.0米,体重有300多公斤。海牛一般靠自家肚皮高头个脂肪保持身体热量。

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