Add Yahoo as a preferred source to see more of our stories on Google. It's a fish story with a big, unexpected plot twist. A native Great Lakes whitefish thought extinct for nearly 40 years has been ...

The ancient coelacanth, a lobe-finned fish, is a “living fossil” in every sense of the term. Biologists believe this supreme survivor has undergone little change in 400 million years. Here’s its story ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...