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 ...

BRAD Hollingsworth crouches at the edge of a pond in Southern California, rubber boots sunk into the mud, but he doesn't step ...

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 ...

Explore one of San Diego’s dozens of canyons on this short hike that would be especially inviting for students, with a location not far from the San Diego State University campus. Located in Rancho ...

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 ...

SAN DIEGO — The San Diego Zoo Wildlife Alliance is taking steps to ensure an endangered species doesn’t go extinct. The alliance, in collaboration with Omaha’s Henry Doorly Zoo and Aquarium, have ...

San Diego scientists reintroducing some of the more than 70 endangered mountain yellow-legged frogs into a lake. Credit: San Diego Zoo Wildlife Alliance Scientists from the San Diego Zoo Wildlife ...

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 ...