The boxer pupfish are believed to be extinct in the wild Eggs from a rare Mexican fish species believed to be extinct in the wild have successfully hatched at Bristol Zoological Society.

Once Britain’s premier big-barbel river, very few examples of the species are now reported from the Great Ouse. But there are ...

Inside San Diego's Million-Specimen Fish ‘Library' — With the Scientist Who Runs It The creature that washed ashore in Carlsbad was a Pacific footballfish, the scientist confirmed. While rare ...

More than three decades after being listed for protection, California’s delta smelt is “functionally extinct.” The Trump administration could hasten its demise. At just 3 inches long, the ...

underscoring how rare this sighting was. This fish with "devil" in its name is black as the depths in which it normally lives. Its teeth look like razors. Female black seadevils, such as the one ...