Holiday Hours Notice:
Our Sales Representatives will be away from December 12 to January 4.
Our support staff will be available through Friday, December 19, and normal service resumes January 5.
Thank you for your understanding during our seasonal slowdown, and hopefully you too will enjoy a break.
Sharks have existed for millions of years. But many prehistoric sharks are very different from the sharks swimming in the ocean today. This book examines prehistoric sharks, including what they looked like and how they evolved into the sharks of today.