Park rangers in Chester County, Pennsylvania, found an invasive snakehead fish in the Schuylkill River this week.

In landlocked Arizona, where the Colorado River crisis has put water use under a microscope, a new inland desert fish farm is ...

In landlocked Arizona, where the Colorado River crisis has put water use under a microscope, a new inland desert fish farm is growing barramundi, a tropical species native to Australia. (AP Video: ...