There are frogs that actually freeze themselves for winter

Wood frogs have adapted to cold climates by actually freezing themselves during the winter months. They stop breathing and their heart stops beating.

According to the National Wildlife Federation, wood frogs produce a special antifreeze substance that prevents ice from building up within their cells which could be fatal.

At a certain temperature, they thaw and resume feeding and mating again. This adaptation allows the frogs to range farther north than any other North American amphibian or reptile.

Wood frogs are found in the forests of Alaska, Canada, and the northeastern United States. Populations also extend down into the southern Appalachians including parts of North Carolina.

The scientific name for woods frogs is Lithobates sylvaticus which stems from the Greek words “Litho” meaning “a stone” and “bates” meaning “one that walks or haunts.” Sylvaticus is Latin for “amidst the trees.”

Female wood frogs are typically larger and brighter colored than males. They are often described as being explosive, short term breeders, as the breeding season often takes place over just a few days in February or March. The male breeding call is a raspy clacking sound similar to the quacking calls of ducks.