Database entry includes a little information for why this species is data-deficient.
例句与用法
1.
The site protects key threatened species , including giant arapaima fish , the amazonian manatee , the black caiman and two species of river dolphin 保护区为许多珍稀濒危动物提供保护，例如巨骨舌鱼、亚马逊海牛、黑凯门鳄和两种淡水豚类。
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