Dinosaurs existed for millions of years. As us humans progress on the earth we need to understand the earth and its needs in order for us to maintain a healthy planet.
- ISBN13 9781312633636
- Publish Date 2 January 2015 (first published 21 October 2014)
- Publish Status Active
- Publish Country US
- Imprint Lulu.com
- Format Paperback
- Pages 100
- Language English