Katy Delaney hikes through the Santa Monica Mountains, climbing boulders and splashing into creeks, searching for a spot a frog could love.
The California red-legged frog, featured in Mark Twain's short story, "The Celebrated Jumping Frog of Calaveras County," thrived in streams there until the 1970s, when the species all but disappeared.
It was found again recently, but this time in just a small stretch of pristine water running high up in the Las Virgenes Canyon.
"It's like eight big, nice pools, and that's it," said Delaney, a wildlife ecologist with the Santa Monica Mountains National Recreation Area.
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