A T-rex trackway reveals how the apex predator truly moved

What if the most famous predator to ever walk the Earth still held secrets about its fundamental behavior, movements, and the very ground it stalked? For decades, our understanding of Tyrannosaurus rex has been largely shaped by its formidable skeletal remains, painting a picture of an apex hunter of immense power. However, a groundbreaking discovery unveiled in September 2026 offers a rare glimpse beyond the bones: a fossilized trackway of an adult T-rex in North Dakota, providing direct evidence of how this magnificent creature moved across its landscape 66.5 million years ago.

This isn't just another fossil find; it's the first known series of footprints left by an adult T-rex, found in the prolific Hell Creek Formation. Identified in 2025 and officially published this fall in the Journal of Vertebrate Paleontology, the trackway consists of four distinct, three-toed impressions spanning approximately 7 meters. Each print measures about 1 meter long, offering paleontologists an unparalleled opportunity to study the natural locomotion of this colossal dinosaur.

Beyond the Bones: A Glimpse into Behavior

While skeletal remains provide invaluable information about anatomy, footprints offer a unique behavioral snapshot that bones simply cannot. As Tyler Lyson, a senior curator at the Denver Museum of Nature and Science, highlighted, “Bones tell us an enormous amount about these animals, but footprints capture a moment of behavior.” This newly discovered trackway allows researchers to literally follow the animal's path, providing concrete data on its natural walking pace and stride.

From these prints, scientists have been able to estimate the T-rex’s walking speed at approximately 1.5 to 2 meters per second, or between 5.5 and 7 km/h (3.5 to 4.5 mph). This pace is comparable to a brisk human walk or a very tranquil human stride, suggesting a powerful but deliberate gait. Such figures corroborate data derived from other large theropods, reinforcing our understanding of how these massive predators likely navigated their environment. We now have a more refined picture of a creature that, at an estimated 8,000 kg, moved with a calculated, rather than a frantic, rhythm. It underscores how much more we can learn when direct evidence of movement is preserved, moving beyond purely speculative reconstructions.

The Uniqueness of a Trail

The true significance of this find lies in its nature as a 'trackway'—a consecutive series of prints. Before this discovery, only two isolated T-rex footprints had been found globally, one in Montana and another in New Mexico, making a connected sequence exceptionally rare. While trackways of close relatives like Gorgosaurus or Albertosaurus have been documented, particularly in Canada, an adult T-rex trackway remained elusive until now.

The context of its preservation is also noteworthy. This trackway was maintained through a unique process resulting in