Just when you thought it was safe to go back in the water! Celebrate the New York Times best-selling 3-d look at prehistoric creatures of the deep. While dinosaurs patrolled the lands, massive prehistoric sharks, giant scorpions, and colossal squid cruised the ancient oceans - most with just one thing in mind- eat or be eaten. Pop-up masters Robert Sabuda and Matthew Reinhart explore the prehistoric underwater world where monsters like megalodon ruled the waves. Full of captivating facts and more than thirty-five breathtaking pop-ups, this incredible volume is sure to astonish and amaze everyone from budding marine biologists to confirmed landlubbers.