The glass frog’s unusual adaptation to bolster its camouflage could offer clues for preventing deadly blood clots in people. By Veronique Greenwood At first glance, you might miss the glass frog of ...

(AP) — Red-legged frogs made famous by Mark Twain are thriving in Yosemite Valley after a decades-long absence. Ecologists this spring found clusters of eggs in meadows and ponds, proof of the first ...

ANGELS CAMP, Calif. — When Mark Twain published “The Celebrated Jumping Frog of Calaveras County” in 1865, the frog helped make him famous, and he returned the favor. Since then, the frog has made the ...

Nearly 600 California red-legged frog tadpoles were released into Santa Monica Mountains streams recently, marking an emergency conservation success for a species that vanished from the area more than ...

First off, congrats on adopting your new froggy friend! We’re all very “hoppy” for you and your new pond pal! After you get their habitat all nice and ready, and you've got plenty of bugs and other ...

A rare frog that is California’s state amphibian and likely the species featured in a famous Mark Twain short story is thriving in its new Napa County home. The Land Trust of Napa County’s Wragg Ridge ...

Reports of the California red-legged frog’s death are greatly exaggerated. The amphibian made famous by Mark Twain, who wrote about it in his short story “The Celebrated Jumping Frog of Calaveras ...

FILE ART - Red-legged tree frogs are making a comback in Yosemite National Park. YOSEMITE NATIONAL PARK, Calif. (AP) - Red-legged frogs made famous by Mark Twain are thriving in Yosemite Valley after ...