California red-legged frog recovery reaches 10,000 released in Yosemite after decades of absence

After invasive bullfrogs and elevated raccoon populations eliminated California red-legged frogs from Yosemite National Park decades ago, a 10-year coordinated effort by the National Park Service, U.S. Fish and Wildlife Service, California Department of Fish and Wildlife, Yosemite Conservancy and San Francisco Zoo & Gardens has released 10,000 zoo-reared frogs back into the wild, with multiple generations now established in Yosemite Valley.

The project involved removing invasive species and habitat restoration; ongoing management will be needed to maintain the population.