Problem solved. Or so it appeared. Two years later, northern snakeheads fulfilled biologists’ worst fear and showed up in the Potomac River. Experts worried that snakeheads in the Potomac ...

Since then, they’ve made their way into the Potomac, parts of Pennsylvania ... Read more about the how northern snakehead is spreading in the upper Delaware River in The New York Times.

Snakeheads were illegally dumped into a pond in Crofton, Maryland two years earlier. They spread into the Potomac River drainage, eventually making their way into Virginia streams. They finally ...

A new reward program in Chesapeake Bay gives anglers a financial incentive to harvest invasive snakeheads and catfish.