The northern snakehead, a large Asiatic invasive species, has been expanding in Berks County with its almost super-piscine ...

Scientists found small fish with blue pattern in drying riverbed of Democratic Republic of the Congo and discovered new species: gem lampeye fish, study said.

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.

In a special report, USA TODAY NETWORK-Wisconsin examines how federal cuts could impact invasive species monitoring on Lake Michigan.

Shallow-water ciscoes, a native fish species extirpated from Lake Erie in the mid-20th century, have been rediscovered in a Pennsylvania lake.

Catch, kill, keep: With walleye biting and no bag or possession limits on the species at Lake Lowell, Fish and Game asks anglers to take advantage ...

Two snail-crushing cichlid species, Labrochromis mawe and mawepili, have been discovered in Tanzania’s Lake Victoria, thriving in rocky, illuminated habitats.

Lake Tahoe saw its first case of a boat carrying golden mussels after the highly invasive species was found during a mandatory watercraft inspection.

Want to catch a freshwater fish over 100 pounds? Learn where, when, and how to catch lake sturgeon in Wisconsin, Minnesota & Michigan.