Nearly 20 years ago, the last known Cascades frog disappeared from Lassen Volcanic National Park. Now researchers are bringing them back, hoping the frogs can stage a comeback. Lassen Volcanic ...

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 ...

Somewhere between life and death is the Alaskan Tree Frog. Discover how this amphibian freezes and lives to tell the tale.

Lassen Volcanic National Park in far Northern California is a rugged wonderland of lava flows, cinder cones and boiling pools. It is also dotted with welcoming meadows and alpine lakes - places a ...