The mountain yellow-legged frog once thrived in the Sierra Nevada, but today there is less than 100. The yellow-legged frog is a popular topic with researchers and was once an abundant amphibian ...

The yellow-spotted tree frog is also known as the yellow-spotted bell frog, the New England swamp frog or the tablelands bell frog. It’s listed on the Red List of the International Union for ...

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 ...

Conservation organizations released 350 mountain yellow-legged frogs earlier this year, marking another step in an intensive, long-running reintroduction project for this highly endangered species in ...