- are possibly the most specialised creatures on Earth
可能是地球上最奇特的动物 - for they live only in cave waterfalls.
因为它们只生活在洞穴瀑布中 - The entire population of these cave angel fish
世界上所有的洞穴天使鱼 - seems to be restricted to just two small caves.
可能只存在于两个较小的洞穴中 - It's the same story with other troglodytes.
其它穴居动物也是同样的情况 - There may well be less than a hundred Texas cave salamanders in the wild.
世界上可能只有不到100只 野生洞栖童态河溪螈 - And the Belizean white crab is another creature that is unique to just one cave system.
而伯利兹白蟹是另一个 洞穴生态系统中的特有物种
seems to be restricted to just two small caves. 可能只存在于两个较小的洞穴中
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