Paleontologists finally have their first good look at a dinosaur butthole - CNET

For the first time ever, scientists take a closer look at the dinosaur's cloaca that was used to expel waste and, potentially, attract a mate.

Paleontologists finally have their first good look at a dinosaur butthole     - CNET
For the first time ever, scientists take a closer look at the dinosaur's cloaca that was used to expel waste and, potentially, attract a mate.