Publisher ? : ? National Geographic Children's Books; First Edition (October 1, 1999)
Language ? : ? English
Hardcover ? : ? 32 pages
ISBN-10 ? : ? 0792271122
ISBN-13 ? : ? 978-0792271123
Reading age ? : ? 8 - 12 years
Grade level ? : ? 3 - 7
Item Weight ? : ? 12.8 ounces
Dimensions ? : ? 8.84 x 0.32 x 11.12 inches

Naturalist Jim Arnosky builds an imaginary ark to carry his favorite wild animals safely into the next century. He compares the status of these animals a hundred years ago to their situation today and challenges children to help ensure the future of many endangered species.