Paleontologists finally take their first good look at the back of a dinosaur – Sunday Vision

Below is a digital reconstruction of a Psittacosaurus dinosaur that shows how a hatch vent can be used for signaling during courtship.
Bob Nichols / Paleocreations.com 2020
Paleontologists spend their entire academic life studying dinosaur anatomy. Now a team of scientists from the University of Bristol has finally described in detail the dinosaur cloaca or ventilation hatch, which is used for everything from defecation and urination to attracting a mating mate (or, less scientifically, the jack…

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