During World War II, lakes in California’s Sierra Nevada mountain range were populated with trout that rapidly transformed the region’s ecosystems. Now, a poison is being used in some lakes to kill ...

The jewel-like lakes of the High Sierra in Yosemite National Park are awe-inspiring sights. But for more than a hundred years they've also been biologically disrupted, stocked each year with ...

In this stunning YouTube clip, a frogfish bides its time, waiting for the perfect moment to strike at an unsuspecting cardinal fish. This gives us time to observe it and wonder whether it is a frog or ...

Hundreds of the animals were loaded into coolers and hiked into the backcountry.

Despite megafires that reduced much of their habitat to ash, some fish, amphibian and crayfish species in the Cascades ...

The Fish and Wildlife Service has finalized plans to recover a threatened Oregon frog and an endangered Missouri fish. More than a $1 billion difference separates the cost estimates in the Fish and ...

Santa Barbara conservationists are revamping part of Gaviota State Park after settling a two-year-old lawsuit against the California State Parks department. Gaviota spans 2,000 acres and is known for ...