Add Yahoo as a preferred source to see more of our stories on Google. U.S. Geological Survey biologist Elizabeth Gallegos leads her team on a hike to release Southern California mountain yellow-legged ...

Marlowe Robertson-Billet carefully scooped three-inch tadpoles from a fish tank into plastic bags, then quickly piped in pure oxygen from a steel tank. Along with a team of zookeepers and biologists ...

Smithsonian researchers in Panama have begun to reintroduce native golden frogs to the wild in special enclosures ...

Getting your Trinity Audio player ready... Shortly after World War II, California fish managers had a brainstorm: They loaded juvenile trout into airplanes and saturation-bombed naturally fishless ...

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

Up-to-date population estimates are difficult to determine because of environmental restraints preventing access to sites where the frogs are thought to live. The goal of the recent efforts has been ...

It was happy hour at the “Frog Shack,” a tiny building at the Los Angeles Zoo offering all the amenities that Southern California’s rarest — and perhaps fussiest — amphibians might need to survive.

SAN BERNARDINO (CBSLA) — A group of mountain yellow-legged frogs have been reintroduced to the San Bernardino National Forest, nearly 20 years after its population was nearly wiped out in Southern ...

The Sierra Nevada yellow-legged frog could receive federal protection after the U.S. Fish and Wildlife Service proposed Wednesday to list the animals along with Yosemite toads under the Endangered ...

For some species of frogs, sex gets pretty chaotic. The amphibians gather in large groups near bodies of water—a preferred egg-laying spot—and the males go into a frenzy, trying to grab onto any ...

Marlowe Robertson-Billet carefully scooped three-inch tadpoles from a fish tank into plastic bags, then quickly piped in pure oxygen from a steel tank. Along with a team of zookeepers and biologists ...

Foothill yellow-legged frogs are striking stream-dwelling amphibians with a distinctive lemon-yellow color under their legs. They live in Pacific drainages from the upper reaches of the Willamette ...