The scientist traipses to a pond wearing rubber boots but he doesn’t enter the water. Instead, Brad Hollingsworth squats next to its swampy edge and retrieves a recording device the size of a deck of ...

THE SANTA ROSA PLATEAU ECOLOGICAL RESERVE, Calif. (AP) — The scientist traipses to a pond wearing rubber boots but he doesn’t enter the water. Instead, Brad Hollingsworth squats next to its swampy ...

For more than 10 years, the San Diego Zoo Wildlife Alliance has led an effort to bolster the population of a threatened species, the mountain yellow-legged frog. But as the zoo’s facilities have ...

More than 350 frogs made the leap back into the Southern California wilderness this month, part of an effort from Birch Aquarium and other regional partners to reintroduce an endangered species to its ...

Birch Aquarium at the Scripps Institution of Oceanography at UC San Diego marked the occasion as its first ever species reintroduction. The frogs were released into the San Bernardino Mountains in a ...

Following a species rehabilitation effort by the Birch Aquarium at Scripps, San Diego Zoo Wildlife Alliance, UCLA and others, more than 350 endangered Mountain Yellow-legged Frogs have been released ...

Biologists will monitor the tadpoles this summer as they grow into baby frogs in the Santa Monica Mountains near Los Angeles. Photo by Ronatory via Unsplash Hundreds of red-legged frog tadpoles, once ...