It’s not often in this line of work you receive a press release titled “All-purpose dinosaur opening,” but a particularly well-preserved Psittacosaurus specimen has, for the first time, been formally recognized as having the multi-faceted butt orifice known as a cloaca. The discovery, made by researchers from the University of Bristol, UK, was published in the journal Current … [Read more...] about Scientists Have Described The Butt Orifice Of A Dinosaur For the first Time