Statistical evidence of predation by theropods

Dinosaurs hold a great fascination for everyone and provide an interesting venue for teaching many elementary concepts of kinematics. Dinosaur trackways provide interesting information about the locomotion of these extinct animals. A statistical analysis of the known trackways made by theropods (carnivorous dinosaurs) shows that they usually moved by walking with an average speed of 2.4 $\pm $ 1.5 m/s. Fast running, determined by the relative stride length greater than 3, is observed in about 10{\%} of the trackways, with speeds on the order of 10 m/s. These trackways are believed to have been formed during predation.