This uniquely American freshwater fish is found in the Mississippi River ... Paleontologists have discovered fossilized bowfin from North America, South America, Europe, Africa, and Asia, the ...

The world has seven continents, but do you know the largest freshwater fish in each ... It’s found in North America's rivers and coastal waters and has survived for millions of years.

Scientists conducting the first-ever South American river dolphin census have sighted hundreds of dolphins, raising hopes about the survival of some of the endangered species’ populations.