Dinosaur Tracks Reveal Odd Mating Dance

An analysis of the newfound marks suggests they are the first known evidence of a type of mating display behavior known as "scraping," common in modern ground-nesting birds. Paleontologists found scores of these "scrapes," areas in the rock that were shallowly scarred by multiple scratch marks. Martin Lockley, co-author of the study and emeritus professor of geology at the University of Colorado, Denver, told Live Science that these scrape marks were unlike anything the scientists had seen befor