To you and me, a tree hollow is just a hole, cavity or tunnel in a tree or branch. But to an animal, that hollow may be a bedroom, hiding place, nursery or shelter. It is the ultimate tree house! Come and take a peek inside the amazing world of tree hollows and discover more than 340 species of incredible Australian animals that call hollows home. With colour photos of glorious gliders, darting dunnarts, minute microbats and many more, this book is full of fun facts about animals that use tree hollows as places for resting, nesting or hiding. Find out how hollows are created, why they are threatened, and meet scientists who spend their time hollow-hunting. There are also plenty of tips on how you can spot hollows yourself, help to protect the environment and encourage habitat for hollow-dependent animals.