This fossil reveals how dinosaurs peed, pooped and had sex CNNFinally in 3-D: A Dinosaur’s All-Purpose Orifice The New York TimesStunning fossil suggests dinosaurs lured mates with smell and vision New ScientistScientists Have Described a Dinosaur's Butthole in Exquisite Detail ScienceAlert1st preserved dinosaur butthole is 'perfect' and 'unique,' paleontologist says Livescience.comView Full Coverage on Google News