Wood Frog
The wood frog can survive the harsh climates each winter by allowing its body to become completely frozen. The hearts and brains naturally go into some form of stasis with no reported activity. The natural antifreeze process is accomplished by pumping a large amount of glucose into the body tissues.
The glucose limits the size of crystals that can form on the frog. The wood frog can be found throughout North America, with the most notable populations found in lowland eastern North Carolina. It is the official state amphibian of New York.