After five-decade absence, red-legged frogs reintroduced to Yosemite NP

YOSEMITE — With no parting glance at their devoted human caretakers, 142 rare red-legged frogs swam to freedom on Friday — one small jump for the frogs but a giant leap for the threatened species.

Our official state amphibian, the frogs vanished from these pristine mountain meadows 50 years ago.

https://www.mercurynews.com/2019/05/05/triumph-as-red-legged-frogs-return-to-yosemite/