The toothy, freshwater fish can grow up to 8 feet long and weigh more than 300 pounds. Prehistoric relatives of alligator gar first appeared around 157 million years ago. Other rare versions of ...

Aaptosyax grypus, or the giant salmon carp, could reach more than 60 pounds and was identifiable from its “s-bend”-shaped ...

ATLANTA— The Center for Biological Diversity today petitioned the U.S. Fish and Wildlife Service to protect a rare freshwater fish called the stippled studfish under the Endangered Species Act.

PORTLAND, Ore.— The Center for Biological Diversity today petitioned the U.S. Fish and Wildlife Service to protect the highly imperiled Alvord chub under the Endangered Species Act. The chub is a ...