Florida wants you to kill as many of the invasive Burmese pythons as you can during the 10-days contest in July. But you can't shoot them.

The murky depths of the mighty river seems to function as refuges for some of the biggest freshwater fish on Earth, explorers are finding.

Natural resources experts explain why a particular fish is thriving in Lake St. Clair, creating the best fishing in the lake in at least 50 years.

The fish, which can survive short periods of time in low-oxygen conditions by breathing air, is an invasive species.

Researcher finds a new species of minnow with blue spots, green stripes, and unique features in Turkish mountain streams that drain into Marmara and Black seas.

Nathan Thomas is doing his part to protect Oklahoma waters by helping remove an invasive fish species from the Neosho River. Thomas recently caught a bighead carp near Miami with help from fishing ...