Libri di hibernation

Hurry Up, Ilua!

L'hibernation

Time for Jody

A little bit of winter

Contribution à l'étude de l'hibernation chez les invertébrés

Bear's Winter Nap

Why Do Some Animals Hibernate? (The Library of Why)

Hibernation

When will it snow?

Will spring ever come to Gobbler's Knob?

Why Do Animals Hibernate?

What will I do without you?

Bear has a story to tell

Animals in winter

Sleep, black bear, sleep