This book has been graded for interest at 9-12 years.

There are 104 pages in this book. This book was published 2007 by Annick Press .

Cora Lee is scientist and freelance writer whose work includes scientific articles for kids. This is her first book. She lives in Vancouver, B. C. Gillian O'Reilly is a children's author and the editor of a children's literature magazine. She lives in Toronto.