A dangerous freshwater predator from Asia is spreading across American waterways, and wildlife officials are issuing a clear ...

A tiny invader, no larger than a paperclip, is poised to unleash a multimillion-dollar plumbing nightmare across California ...

Invasive fish species is known for breathing on land, 'walking' to new water. It harms nature in Mississippi; kill it on sight. Here's what to know ...

An invasive Asian mussel species threatens critical Sacramento-San Joaquin Delta waterways and what the state plans to do about it.

Invasive northern snakeheads can “walk” on land, breathe air and survive out of water for several days, and they also compete with native species in waterways ...

What started as a few pet goldfish dumped into a man-made pond has turned into an overwhelming invasion — and a stark reminder of the valley’s growing problem with animal dumping and pet surrenders.