The animal kingdom is full of fascinating tricks for enduring sub-freezing temperatures. Birds, for example, often just take ...

On a winter walk through Alaska’s forests, you might step over what looks like a dead frog, locked stiff beneath the leaves.

According to a study led by Don Larson of the University of Alaska Fairbanks, wood frogs (Lithobates sylvaticus) freeze up to 60 percent of their bodies during the long and extremely cold Alaskan ...

FAIRBANKS — The first time Marian Snively heard the “errr-ruk-ruk” croaking of a wood frog, she made the same mistake a lot of people make. “When I first heard it I said, ‘That’s a duck,’” recalled ...

Wood frogs hold in urine all winter as a survival mechanism by recycling urea, according to a study published Tuesday. In Alaska, wood frogs go eight months without urinating, and now scientists have ...

WASHINGTON — If you’ve ever been unable to find a bathroom in a moment of need, you know the gotta-go feeling. That’s nothing compared to the wood frog, which doesn’t urinate all winter. In Alaska, ...

Things didn’t look good for the five frozen wood frogs. The palm-sized amphibians were hibernating in a box outside Brian Barnes’ Fairbanks home a few decades ago. Barnes, director of the Institute of ...

Their staccato voices can make a muskeg bog as loud as a city street, though most are so small they could sit in a coffee cup without scraping their noses. They surprise hikers, who notice them ...