WATCH: Frozen frogs thaw out, come back to life
Thursday, September 19, 2013, 2:43 -
Rana sylvactica is a type of wood frog largely found in interior Alaska, and it has developed a unique way to survive the region's harsh winters.
When the frog comes into contact with ice, it turns itself into a frog-sicle: its heart stops breathing, blood ceases to flow and it stops breathing.
The frog can stay in this state for days or even weeks, awakening when temperatures start to warm.
Experts say the frogs are known to freeze and thaw several times over the course of a season.
This incredible ability is made possible through the use of "cryoprotectants", a substance in the frog's blood that protects its biological tissue from freezing damage.
Check out the video above to see the freeze/thaw process in action.