Velociraptors are not the largest dinosaurs, nor the strongest, nor the scariest. A tyrannosaur can eat a tribe of velociraptors for dinner, a brachiosaur shakes the earth with every footstep, and a kronosaur can swallow a boat whole. Yet velociraptors are the most feared of all dinosaurs, for a single reason: they are smarter than humans. Homo sapiens' tool-using opposable thumb is its only advantage over velociraptor mongoliensis. But in game worlds where raptors can observe humans and their tools, the raptors learn quickly, and the advantages of a thumb diminish with every passing day.