an organism (e.g. a horseshoe crab or coelacanth) that has remained essentially unchanged from much earlier geological times and whose close relatives are usu extinct
| 单词 | living fossil |
| 释义 | living fossilnounan organism (e.g. a horseshoe crab or coelacanth) that has remained essentially unchanged from much earlier geological times and whose close relatives are usu extinct |
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