Meet the freshwater fish that will attack anything that moves – including crocodiles and humans. It’s no wonder that their ...

This video examines five freshwater fish species with the physical ability to seriously injure or kill humans. Each segment highlights specific moments showing their size, speed, jaws, or hunting ...

Our world's rivers and lakes are full of many different weird and wonderful fish, but some freshwater ecosystems are more competitive than others. There are many giant reptiles that most creatures ...

Freshwater streams, ponds and lakes across the United States are becoming saltier, and new research from the University of Missouri shows the damage ...

Climate change is rapidly altering freshwater ecosystems — raising temperatures, altering flood pulses and oxygen levels — and driving complex, region-specific changes in how fish grow, migrate and ...