相关文献:“活化石——吸血七腮鳗”
The remipede is a 'living fossil' nearly unchanged for 300 million years.这种多足甲壳类动物remipede是一种“活化石”,3亿年来,这种生物都没有进化过。
But the truth may never be known, since the 'living fossil' died hours after it was caught.但是,事实究竟是怎样现在已无法弄清,因为这条“活化石”鲨鱼在被捉住后数小时便死去了。