As many as 60 percent of the world’s fish species could struggle to breed and reproduce if climate change causes the Earth to warm by 5 degrees Celsius over the next 80 years, the current projection ...

In a world where most freshwater fish are lucky to see a decade, one species quietly pushes past 100 and can reach 120 years ...

The greenback cutthroat trout, considered extinct for 85 years, was found naturally reproducing in Colorado waters after more than a decade of conservation efforts, officials said. Photo from Colorado ...