The iconic red-legged frog, California’s state amphibian, was almost wiped out at Yosemite National Park thanks to natural and man-made enemies. The San Francisco Zoo is making history by breeding a new generation of the amphibian in captivity, hoping to create a model for other threatened species. Now the frogs are ready to take their first leap back into the wild.» Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC
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Biologists In California Are Bringing Back The Red-Legged Frog | NBC Nightly News