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

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 ...

The California Department of Fish and Wildlife released a new plan to reduce the spread of the golden mussel, an invasive ...

Over the decades, the small population of Devils Hole pupfish has fluctuated, hitting a record low of 35 fish in 2013 and a ...