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 ...

Masters of Winter Sleep Wood frogs are some of the hardiest creatures on the planet, capable of surviving temperatures that dip below freezing. Native to North America, these little amphibians undergo ...

As much as 70 per cent of the frog's body is frozen solid. These hardy wood frogs can survive all winter in this suspended animation, undergoing several cycles of freezing and thawing as the ...

or frozen through a freeze-thaw cycle. In the wild, all frogs survived throughout the long winter where temperatures ranged from minus 9 to minus 18 degrees Celsius, a longer and colder period than ...

Rock hard and icy to the touch, this speckled North American wood frog is frozen alive at –2?°C, and has been so for the last 24 hours. Then Jon Costanzo adjusts the temperature of the terrarium, and ...