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

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

Some social media users are sharing an image they claim shows a frozen wood frog. The subject of the image is a green creaturecovered in frost crystals. "In Alaska, wood frogs freeze for seven months ...

Receive emails about upcoming NOVA programs and related content, as well as featured reporting about current events through a science lens. Jon Costanzo: This small, handsome frog is Rana sylvatica, ...

With an eye patch like a bandit and bodies no bigger than 3 inches, wood frogs are among the fascinating critters that spend the winter sheltered in backyard and woodland leaf litter. If you find one ...

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 ...

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 ...

These frogs inside an incubator at Mt. St. Joseph University are in a kind of frozen state. Cryoprotectants are key and researchers are trying to translate the concept into human organs. Under a leafy ...

Frogs that survive freezing excite our imagination with visions of immortality. Underlining this excitement is the unexpected: our experience tells us that freezing kills. We've all read news stories ...