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 wood frogs are one of the only creatures that can be described as “the living dead”. Yet every spring ... incredible survival strategies. They freeze. As winter comes, they hunker ...

The next time you declare that you are “freezing to death,” spare a thought for the wood frog who gets so cold in winter that its heart stops beating – but it does not die.

The wood frog survives extreme winter temperatures by freezing solid, with its heart stopping for nearly eight months. It uses its natural antifreeze, a mix of glucose and urine constituents ...

As colder weather sets in, the frogs then distribute extreme levels of glucose through their bodies, with it concentrating in the heart, liver, skeletal muscles and blood. Minnesota has four types ...