More on the physics of dinosaurs this week on Physics Buzz

Could you outrun a dinosaur? Well, it depends on the dinosaur. According to Scott Lee, a professor of physics at the University of Toledo in Ohio, herbivorous dinosaurs moved more slowly than predatory dinosaurs that often chased down their prey and could reach up to 30 miles per hour. Plant eaters, on the other hand, moseyed along at about 3 miles per hour.

This means you could easily outrun, and even out-walk, some herbivorous dinosaurs. But if you caught the attention of a ravenous raptor, chances are high that it would be the last race you ever ran.

It’s no surprise that predatory dinosaurs evolved to move faster than their prey. Otherwise, they would be hard pressed to find a decent meaty meal most days. But it would also make sense, from an evolutionary standpoint, if herbivorous dinosaurs at least gave predators a run for their money in the cat-and-mouse chase.

By studying 56 sets of distinctive fossilized footprints, or trackways, belonging to herbivorous dinosaurs that paleontologists have uncovered over the years, Lee determined that not a single set resulted from running. Lee calculated the ratio of the dinosaurs’ stride length to foot length and found that all of the footprints were likely made at a walking pace. So, how did the plant-eating dinosaurs protect themselves?

Find out more on Physics Buzz.

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