FIGURE 5 in Maximum Bite Force and Prey Size of Tyrannosaurus rex and Their Relationships to the Inference of Feeding Behavior

FIGURE 5 Relationship between body mass of largest known prey (mean value) and the body mass of its predator (species mean). Considerable variability in this relationship is partly attributable to differences in predatory behavior. Pack hunting, for example, allows a predator to take relatively large prey. The relationship between Triceratops horridus and Tyrannosaurus rex falls well within the range extrapolated from data for extant (mammalian) carnivores and their prey. This indicates that T. rex could have been a competent predator of adult Triceratops horridus, even if acted as a solitary predator. Social groups of other large theropods may have been capable of dispatching significantly larger prey species, possibly even including adult sauropods.