Cryobiology: Frozen Wood Frogs and Adaptations for Survival - Owlcation
Wood Frog | National Wildlife Federation
Antifreeze-Like Blood Lets Frogs Freeze and Thaw With Winter's Whims
Biological Miracle - Gates Of The Arctic National Park & Preserve (U.S. National Park Service)
The wood frog of North America can survive being frozen solid. Its heart stops beating and brain activity ceases. Its liver produces and abundance of glucose (sugar) which along with other enzymes