One interesting FACT about the Wood Frog (Rana sylvatica) is its remarkable ability to survive freezing temperatures. These frogs are found in North America, primarily in regions with cold climates. During the winter, they enter a state of hibernation called "cryogenic" or "freeze tolerance."

As temperatures drop, the Wood Frog's body begins to freeze. Their heart stops beating, and they stop breathing. Ice crystals form both outside and inside their bodies. However, the frog's body produces a natural antifreeze-like substance that prevents ice from forming within their cells. This allows them to survive being frozen solid.

In the spring, as temperatures rise, the Wood Frogs thaw out and come back to life. Their heart starts beating again, and they resume their normal activities. This incredible adaptation enables them to endure the harsh winters in their habitat and is a fascinating example of nature's ability to adapt to extreme conditions.