A piece for Dave Hone accompanying a paper on the use of head frills as display structures in Protoceratops. In the front we see two adults trying to impress each other, while in the background are some juveniles with smaller crests. Hone, David W. E., Wood, Dylan, and Knell, Robert J. 2016. Positive allometry for exaggerated structures in the ceratopsian dinosaur Protoceratops andrewsi supports socio-sexual signaling. Palaeontologia Electronica 19.1.5A: 1-13. http://tinyurl.com/hq8p9mq Prints & Merch