Up to half of the world's 6, 000 amphibian species are thought to be in danger of extinction.
世界上有六千种两栖动物，其中多达一半的两栖动物濒临灭绝。
A mission aimed at rediscovering amphibian species thought to be extinct has yielded its first results.
一个旨在重新发现被认为灭绝的两栖物种的代表团收获了其第一个发现。
No mammal, bird, reptile and amphibian should be collected from the field, as many of them are rare or endangered or prohibited by law from collection.
很多哺乳类动物、鸟类、爬虫类和两栖类都是稀有甚至频危的，而且都受法例保护，所以不应收集它们做样本。
No mammal, bird, reptile and amphibian should be collected from the field, as many of them are rare or endangered or prohibited by law from collection.
很多哺乳类动物、鸟类、爬虫类和两栖类都是稀有甚至频危的，而且都受法例保护，所以不应收集它们做样本。
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