水陆两栖动物
水陆两栖动物-
自然历史博物馆的展览包括数百万年前水陆两栖动物的化石。
The exhibition at the natural history museum includes fossils of amphibious creatures from millions of years ago .
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中国林蛙属于水陆生活的两栖类动物，皮肤裸露，长期的自然选择过程中，为了抵御有害环境因子的侵袭逐渐形成了一系列的保护机制。
The Chinese forest frogs belongs to the amphibian , which have exposed skins , have develop a series of protective mechanism gradually so as to resist the harmful circumstance factors during the long process of nature selection .