How does a wood frog survive the winter?

The wood frog survives winter by undergoing a process called freeze tolerance. It can tolerate freezing of its body tissues, allowing ice to form in its cells while protecting vital organs and tissues from damage. Wood frogs produce glucose and other cryoprotectants that act as antifreeze, preventing ice crystal formation within cells. This unique adaptation allows them to remain in a dormant state until temperatures rise in spring.