Fossilized footprints of three tyrannosaurs have been discovered in western Canada. After coming across the recent findings, researchers think that these dinosaurs may have hunted in packs.

It is for the first time that footprints have been found so close to one another. Also, it is the only clear proof that these dinosaurs were social in nature.

Richard McCrea of the Peace Region Palaeontology Research Centre said they are very sure about the fact that tyrannosaurs hunted in groups. The footprints show that the three tyrannosaurs were travelling together in the same direction.

Earlier, tyrannosaur footprints have been discovered but only of an individual in the United States, Canada and Mongolia. The study published in the journal PLOS ONE unveiled that the parallel track directing towards a rock cliff near Tumbler Ridge, British Columbia suggest that three dinosaurs were moving in a pack.

Similarities in depth and preservation of the tracks prove that they were made by animals that were walking in the same direction. The animals were three-toed and had strong jaws. The footprints are of different sizes belonging to adult animals. Their prints were discovered by a local guide in 2011.

In total, seven footprints have been found. As per researchers, their footprints were covered and preserved by volcanic ash.

McCrea affirmed that they did not have idea about how they walked. "There's been speculation about their biomechanics but prior to the discovery of these trackways, all we had were bones, and theories about how their joints rotated and so on", stated McCrea. But now they have tracks, which they will utilize and know more about the species.