From TFA: "We ruled out swimming because the trackways are so regular," said Martin Lockley, a paleontologist and professor at the University of Colorado and a

From TFA: "We ruled out swimming because the trackways are so regular," said Martin Lockley, a paleontologist and professor at the University of Colorado and an author of the study. "Modern crocs sometimes use hind feet to punt along, but the tracks are irregular incomplete, washed out splayed and not in a regular one foot in front of the next trackway pattern."