The Northern Pike (Esox lucius) belongs to the Kingdom Animalia. It is one of the largest freshwater predators found across temperate regions of the Northern Hemisphere, where it can grow longer than ...

Rivers and lakes around the world are home to fish large enough to overpower many animals in the water. Some of these species have enormous jaws, crushing bites, and the speed to ambush prey in ...

Crocodiles are apex predators in many freshwater ecosystems, but even they can encounter prey capable of fighting back. One such animal, as shown in the video clip, is the electric eel, a South ...

Freshwater streams, ponds and lakes across the United States are becoming saltier, and new research from the University of Missouri shows the damage may be greater than scientists once thought.