Below are some reasons why some fish species are aggressive: Fighting for food. Some fish will always compete for food. An aggressive fish will fight off other fish that are perceived to be a ...

Learn More › Smallmouth bass are brutes. Pound for pound, they are one of the strongest and most aggressive fish that swim in U.S. freshwater. Their fight is one the key reasons why anglers love them ...

Crappie are hands down one of my favorite species to target. These abundant, aggressive fish also taste excellent right out of the fryer. Whether you are bobber fishing in the spring, or ice fishing ...

This aggressive fish is native to China, southern Siberia, and North Korea, where it is fished and occasionally raised for food. But it’s also been introduced around the world, including most ...

aquatic invasive species coordinator for Pennsylvania Fish and Boat Commission. “One of my colleagues has called them gladiator crayfish. They are much bigger, much more aggressive, much meaner ...

Listen here to an aggressive territorial display from a dominant female clown fish, defending her anemone on the reef in Moorea, French Polynesia. You can read the full BBC Future article here.