Born in Wales in 1950, Martin Lockley was a pioneer in the study of the dinosaur tracks and footprints preserved in rocks around the world. His work helped his fellow paleontologists（古生物学家） understand what the footprints can tell us about dinosaurs and the world that they lived in.
The footprints and tracks left behind by dinosaurs and other prehistoric animals are called trace fossils（痕迹化石）. They can offer clues to how quickly an animal walked or ran and even what their skin may have looked like. Compared with the body fossils of bones and teeth, trace fossils contain evidence of the interactions that the animals had with their environment and can describe what the physical environment may have looked like. They offer a more reliable way to imagine the speed of a dinosaur than analyzing the bones.
Lockley's mother and father were nature lovers. Lockley loved to observe nature. His father inspired him to "just go out and observe and trust your observations", which proved important in Lockley's launching his future career in dinosaur research. He took that advice with him to Gunnison, southwest of Denver, the United States. While North America is home to some of the largest number of fossil footprints in the world, Lockley 's work with prints and his father's words took him far and wide. He explored fossil and track sites in China, South Korea, Spain and the United Kingdom.
In addition to finding the tracks, Lockley devoted time and energy to preserving these important parts of the fossil record. This includes guiding the politics needed to create UNESCO world heritage sites so that future generations wouldn't lose out on these precious relics of the past.
