On a winter walk through Alaska’s forests, you might step over what looks like a dead frog, locked stiff beneath the leaves. Its eyes are glazed with ice, its heart doesn’t beat, and its lungs do ...

Long before winter seals the forest under ice, certain frogs begin preparing for a transformation that defies basic biology. The wood frog (Rana sylvatica), along with a few treefrog species like the ...

The animal kingdom is full of fascinating tricks for enduring sub-freezing temperatures. Birds, for example, often just take flight for warmer parts unknown the moment a frost hits their environment.

Scientists have discovered that frogs have the ability to regrow limbs. It was already known that other animals, like salamanders, starfish, crabs and lizards could do the same. Researchers at Harvard ...

As winter swoops over the world, wrapping the days in mist and hardening the ground beneath a layer of frost, people retreat indoors to snuggle into cozy blankets. With heaters humming in the ...

A Dec. 12 Metro article about animals that freeze solid incorrectly said that spring peepers and gray tree frogs lose their ability to freeze as they age. The animals keep that ability into adulthood.