As an accidental species , big salamander andias davidians ( amphibia vrodtle cryptobrahidae andias ) is the biggest amphibian in the world 大鲵( andiasdavidianus )俗称娃娃鱼，属两栖纲，有尾目，隐鳃鲵科，是世界上最大的珍稀两栖动物和国家二级保护动物。
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A few live endangered species such as asiatic bony tongue , giant salamanders , hill myna , box turtle , chameleon and iguana are also kept at the resource centre 资源中心亦展示几类活生的濒危物种，如龙吐珠鱼、娃娃鱼、海南鹩哥、闭壳龟、变色龙与绿鬣蜥。
