The Lost World is by Michael Crichton. The sequel to Jurassic Park finds Ian Malcolm and his scientist friend Levine studying extinction theory. They decide to search for InGen's Site B so they can mount an expedition to study dinosaur behavior to prove their theories - some people never learn! When Levine goes missing after flying to Isla Sorna, Malcolm leads a team to rescue him, and everything goes downhill from there. If you like Crichton you will love this book as well, it's full of enough scientific jargon and theory to keep the scientifically inclined reading and enough blood, dinosaurs, and action for the rest of us.
Ratings: Adult - 8 out of 10 - P (profanity) - V (violence).