在澳大利亚发现的388种哺乳动物中，78种被列为易危、濒危或野外绝灭，而近14%的两栖动物、5%的爬行动物及6%的鸟类则濒临灭绝。

Of the 388 mammal species found in Australia, 78 are listed as vulnerable, endangered or extinct in the wild while nearly 14% of amphibians, 5% of reptiles and 6% of birds are at risk of extinction.

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根据国际自然与自然资源保护联合会公布的哺乳动物《红色名单》显示，婆罗洲猩猩和苏门答腊猩猩都属于濒危动物。

Both the Borneo and Sumatran species of orangutans are endangered, according to the IUCN red List of mammals.

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然而，在他的动物园里的51种哺乳动物和鸟类，只有7种被国际自然保护联盟列为濒危物种。

Yet of the 51 mammal and bird species at his zoo only seven are classed as threatened by the International Union for Conservation of Nature.

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