More than 350 Mountain Yellow-legged Frogs have been reintroduced into the wild in Southern California’s San Bernardino Mountains, marking one of the largest releases to date and a significant step in efforts to save this endangered species. The release also represents a milestone for Birch Aquarium at Scripps Institution of Oceanography at UC San Diego — the aquarium’s first-ever species reintroduction and a historic moment in its growing conservation work. Birch Aquarium, in collaboration with San Diego Zoo Wildlife Alliance, UCLA, Big Bear Alpine Zoo and others, released the frogs into a wildlife preserve managed by The Wildlands Conservancy. This effort is part of a long-running recovery program …“Thanks to these efforts, Mountain Yellow-legged Frogs are hopping around Bluff Lake for the first time since they were last recorded here in 1951,” said Tim Krantz, Conservation Director for The Wildlands Conservancy.