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Why Did Pterosaurs Have Head Crests?

One of the most recognisable Features of pterosaurs was their huge crest that would have dominated their silhouette on the mesozoic skyline. In particular the incredibly famous backward cone shaped crest of pteranodon. Many theories have been put forward for why these structures existed from the outlandish to the mundane, so what was there purpose? To support me on Patreon (thank you):   / mothlightmedia   To donate to my PayPal (thank you): https://www.paypal.me/mothlightmedia To buy merchandise: teespring.com/en-GB/stores/moth-light... Email: [email protected] If I have used artwork that belongs to you but have neglected to credit it this will just be because I was unable to find one. If this has happened please contact me and I will add a credit. Some Art work has been altered for the purposes of bettering them for video format; these alterations were done independent from the artists who created the original work, so they are not responsible for any inaccuracies that could have occurred with the changes being made. Sources: https://www.researchgate.net/publicat... https://www.researchgate.net/publicat... https://www.researchgate.net/figure/S... https://onlinelibrary.wiley.com/doi/1...