While many animal species possess an ability to withstand very low temperatures, the wood frog, also known by its scientific name Rana sylvatica, is the largest animal known to survive up to two-thirds of its body water being frozen.Continue Reading
While frozen, a wood frog can stop breathing and its heart may stop beating for weeks at a time. This process of freezing and thawing out may occur multiple times over the course of a winter.
In addition to the wood frog, the tardigrade, or water bear, is a microscopic organism that can withstand temperatures as low as minus 457 degrees Fahrenheit. This animal is only 1 millimeter in length and can also survive in boiling water, high radiation environments and outer space.Learn more about Polar Bears