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 ...

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 ...

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 ...

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 ...

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 ...