Relates the competition between Othniel Marsh and Edward Cope to discover more fossils, name more species, and publish more papers that brought out the best and
"Explore each deadly predator in detail, from their special abilities to their killer moves. Check their battle stats to discover who is the best in attack and
"Who would win in a fight between an Allosaurus and a Kentrosaurus? Now eager readers can find out, as each dinosaur's strengths and weaknesses are exposed. Eac