The next time you snivel, "I am freezing to death," you might want to consider the wood frog, which withstands such bone-chilling cold in winter that its heart stops beating yet does not die.

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. Once the spring ...

A: The heart rate of a wood frog, or any ectothermic ("cold-blooded") animal, strongly depends on its body temperature. When the frog's temperature falls to near the freezing mark, the heart ...