Add Yahoo as a preferred source to see more of our stories on Google. The wood frog (Lithobates sylvaticus or Rana sylvatica) has a broad distribution over North America, extending from the Boreal ...

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 (AP) — 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 ...

Their bodies cooling with the October air, wood frogs are now snug in leafy blankets all over Alaska. Down there inside those thumb-size frogs, even smaller creatures are hitching a ride. These tiny ...

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 ...

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 ...

The wood frog (Lithobates sylvaticus or Rana sylvatica) has a broad distribution over North America, extending from the Boreal forest of Canada and Alaska to the southern Appalachians. Portrait macro© ...

This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...

Alaskan wood frogs survive freezing temperatures by entering states of suspended animation. They do this by undergoing a controlled body freeze, spreading glucose through their bodies, and shutting ...