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Flathead catfish becomes top predator of the Susquehanna River, eating fish 20 inches long

In less than 25 years, an invasive fish has become the apex predator of the Susquehanna River in eastern Pennsylvania. Flathead catfish have been flourishing in the river since 2002, growing to 30 to ...
Miami Herald

Apex predator with gold scales caught in river in Georgia. It’s a new species

Scientists caught an apex predator with gold scales in rivers of Georgia and South Carolina and discovered a new species, a study said. Google Street View May 2023 ...

How Scientists Cut a Bloodsucking Invasive Fish Population by 90%

Sea lampreys have terrorized Great Lakes fish populations for decades, latching onto hosts and draining them like aquatic ...
New Scientist

Cleaner fish calms predators with caresses

Peacemakers should look to the cleaner fish as a role model. In the coral reef world at least, all it takes to keep an aggressive predator in check and bystanders safe is good service and a gentle rub ...

In the 1950s, Nile perch were introduced into Africa’s Lake Victoria to boost catches, and within decades the predator was linked to the loss of about 200 native species

One decision in the 1950s transformed Lake Victoria’s ecosystem. The Nile perch was introduced into Lake Victoria in Africa in an effort to boost commercial fishing by creating larger catches for the ...