Researchers study a 150-million-year-old dinosaur trackway in Colorado made by a giant sauropod. Using drone-based mapping, scientists create a detailed 3D model of a trail containing more than 130 footprints. The trackway preserves evidence of how the animal moves across the landscape, including differences between left and right step measurements.

Across the sources, the most striking feature is that the sauropod’s trail forms a complete loop before it continues onward. One outlet highlights subtle variation in stride length between the sauropod’s two sides. The other emphasizes the uneven stride pattern and reports that this may suggest the dinosaur is moving with a limp, though the interpretation centers on the trackway’s shape rather than direct observation.

Overall, the findings show how modern imaging and modeling of fossil footprints can inform reconstructions of dinosaur locomotion and behavior, while also pointing to possible, but not definitively proven, biomechanical explanations for the uneven steps.