'Living Fossil' Fish Is Dethroned

摘要

About 370 million years ago, a restless faction of the fishes traded in their fins for feet and set out to colonize land. Biologists have debated for decades exactly which members of the fish family made this bold move—and therefore which of their descendants are our closest living gilled relatives. Now it seems popular favorite, the "living fossil" known as the cbelacanth, is out of the running.