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来自维基百科,自由的百科全书
现生种(英语:Extant taxon)一般是使用在仍然存活的分类单元(诸如物种、属或是科),是今生物学的主要研究对象。这个词汇与灭绝形成对比。比如说,北极狼是一种现生物种,而日本狼则是已灭绝的物种。同样地,软体动物头足纲的已知群体,大约有600种的现生种和7500种的已灭绝种。[1].
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