/tags/hadrosaurus Hadrosaurus en-US Copyright Thu, 07 Aug 2014 23:21:26 GMT /texas-news/2014-08-07/footprints-suggest-duck-billed-dinosaurs-thrived-in-polar-ecosystem Some newly-found footprints of the duck-billed hadrosaur just might change our understanding of the species.A herd of duck-billed hadrosaurs left behind a… Thu, 07 Aug 2014 23:21:26 GMT /texas-news/2014-08-07/footprints-suggest-duck-billed-dinosaurs-thrived-in-polar-ecosystem Justin Martin