The 350 mountain yellow-legged frogs were reintroduced to the San Bernardino Mountains as part of an effort from the Birch ...

Birch Aquarium at the Scripps Institution of Oceanography at UC San Diego marked the occasion as its first ever species ...

Today, federal biologists say, about 200 yellow-legged frogs are barely hanging on in isolated wild populations along a handful of hard-to-reach streams.

Program released its 1,000th Sierra Nevada yellow-legged frog, marking a significant milestone in the fight against species ...

The Birch Aquarium at Scripps Institution of Oceanography, in collaboration with several organizations, has successfully ...

The Oakland Zoo released its 1,000th yellow-legged frog into California's wilderness this week, marking a milestone for ...

Thirty-three Sierra Nevada yellow-legged frogs leapt into the wild Wednesday and Oakland Zoo officials hope they will help restabilize their species.

After vanishing from nearly half of their historic habitat, six populations of imperiled yellow-legged frogs will get new protections following a decision by the California Fish and Game Commission.

Adult foothill yellow-legged frogs (Rana boylii) are from 1.5 to 3 inches long, with a distinctive lemon-yellow color under their legs. They inhabit partially shaded, rocky streams that flow ...

Mountain yellow-legged frogs thrived for thousands of years in hundreds of streams cascading down the San Bernardino, San Gabriel and San Jacinto mountains.