Two samples of the UCMP's large collection of theropod dinosaur footprints are shown at left note the amazing similarity to the tracks of birds on a beach or muddy ground. One line of evidence is the information given to us by those trackways. We have several lines of evidence that can help us estimate how dinosaurs could move. One popular question is how fast did they move? Did some of them run as fast as the modern cheetah? Most scientists involved in the investigation of dinosaur locomotion think not. We know that dinosaurs moved they were vertebrates, and we have their trackways (sequences of footprints) preserved in certain sediments as fossils.
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