Tyrannosaurus was not a fast runner review: Pt. 1

In the reading by John R. Hutchinson and Mariano Garcia, the two authors propose a controversial concept that large theropod dinosaurs such as Tyrannosaurus were not actually fast runners. They use a method for gauging running through a model system that works for estimating the speed of living species such as alligator and chickens.The authors point out that this concept of Tyrannosaurus being a slow runner is not a new idea. There were earlier assessments based off of biomechanics that suggested the dinosaur was limited in locomotive performance. These early ideas were not widely accepted due to the uncertainty of the dinosaur’s anatomy, physiology, and overall behavior. However other previous studies estimate that Tyrannosaurus was able to run in the range of 11-20 m/s.