Wood Frog
WOOD FROG | Photo Caption: Excerpted from North America: A World in One Continent by Huw Cordey | ARKive Animal Profile: Wood Frog
Nick Lyon
While some animals hibernate to survive until spring, wood frogs have a unique way of dealing with the cold – they are able to freeze and thaw with their surroundings. They can lock down when surrounded by ice and go into stasis, then thaw without any damage; their blood acts like antifreeze so that instead of developing dangerous ice crystals when the temperature drops below zero, their blood remains fluid.
This is a risky strategy. If the freeze is more than a few degrees below zero, or if it lasts for too long, they will die. But their amazing ability has the cryogenics industry very excited. If frogs can do it, why not humans?
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