Did you know that wood frogs freeze solid during the winter? Wood frogs thaw out and wake up in a few short hours in the spring. How do these little frogs pull off such an amazing feat? Find out about this winter mystery and more in "Hibernation Explained". This resource booklet explores many types of animals and their amazing winter survival skills. This booklet includes web links to many great websites including a bear web cam research station in Ely, Minnesota.